Home / 971,348,193.20-1,340,464,517.58-525,311,546.76

Finding the Fourth Proportional to 971,348,193.20, 1,340,464,517.58 and 525,311,546.76

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Solution

The fourth proportional to 971,348,193.20, 1,340,464,517.58 and 525,311,546.76 is: 724,932,103.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,348,193.20 : 1,340,464,517.58 = 525,311,546.76 : x
  2. Step 2: Convert to fraction form
    971,348,193.20/1,340,464,517.58 = 525,311,546.76/x
  3. Step 3: Cross multiply
    971,348,193.20x = 1,340,464,517.58 × 525,311,546.76
  4. Step 4: Simplify right side
    971,348,193.20x = 704,161,489,100,144,640
  5. Step 5: Solve for x
    x = 704,161,489,100,144,640/971,348,193.20
  6. Step 6: Final answer
    x = 724,932,103.68

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Half scale
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Double scale
Find fourth proportional to 971,348,194.20, 1,340,464,518.96 and 525,311,547.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.