Home / 916,534.10-1,374,801.15-820,111.70

Finding the Fourth Proportional to 916,534.10, 1,374,801.15 and 820,111.70

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Solution

The fourth proportional to 916,534.10, 1,374,801.15 and 820,111.70 is: 1,230,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,534.10 : 1,374,801.15 = 820,111.70 : x
  2. Step 2: Convert to fraction form
    916,534.10/1,374,801.15 = 820,111.70/x
  3. Step 3: Cross multiply
    916,534.10x = 1,374,801.15 × 820,111.70
  4. Step 4: Simplify right side
    916,534.10x = 1,127,490,508,288.45
  5. Step 5: Solve for x
    x = 1,127,490,508,288.45/916,534.10
  6. Step 6: Final answer
    x = 1,230,167.55

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Half scale
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Double scale
Find fourth proportional to 916,535.10, 1,374,802.65 and 820,112.70
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.