Home / 783,411.50-1,081,438.56-529,107.14

Finding the Fourth Proportional to 783,411.50, 1,081,438.56 and 529,107.14

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Solution

The fourth proportional to 783,411.50, 1,081,438.56 and 529,107.14 is: 730,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,411.50 : 1,081,438.56 = 529,107.14 : x
  2. Step 2: Convert to fraction form
    783,411.50/1,081,438.56 = 529,107.14/x
  3. Step 3: Cross multiply
    783,411.50x = 1,081,438.56 × 529,107.14
  4. Step 4: Simplify right side
    783,411.50x = 572,196,858,160.13
  5. Step 5: Solve for x
    x = 572,196,858,160.13/783,411.50
  6. Step 6: Final answer
    x = 730,391.20

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Double scale
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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.