Home / 919,340.20-1,379,010.30-446,948.20

Finding the Fourth Proportional to 919,340.20, 1,379,010.30 and 446,948.20

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Solution

The fourth proportional to 919,340.20, 1,379,010.30 and 446,948.20 is: 670,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,340.20 : 1,379,010.30 = 446,948.20 : x
  2. Step 2: Convert to fraction form
    919,340.20/1,379,010.30 = 446,948.20/x
  3. Step 3: Cross multiply
    919,340.20x = 1,379,010.30 × 446,948.20
  4. Step 4: Simplify right side
    919,340.20x = 616,346,171,366.46
  5. Step 5: Solve for x
    x = 616,346,171,366.46/919,340.20
  6. Step 6: Final answer
    x = 670,422.30

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Half scale
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Double scale
Find fourth proportional to 919,341.20, 1,379,011.80 and 446,949.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.