Home / 891,792.10-1,337,688.15-418,525.30

Finding the Fourth Proportional to 891,792.10, 1,337,688.15 and 418,525.30

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Solution

The fourth proportional to 891,792.10, 1,337,688.15 and 418,525.30 is: 627,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,792.10 : 1,337,688.15 = 418,525.30 : x
  2. Step 2: Convert to fraction form
    891,792.10/1,337,688.15 = 418,525.30/x
  3. Step 3: Cross multiply
    891,792.10x = 1,337,688.15 × 418,525.30
  4. Step 4: Simplify right side
    891,792.10x = 559,856,334,285.20
  5. Step 5: Solve for x
    x = 559,856,334,285.20/891,792.10
  6. Step 6: Final answer
    x = 627,787.95

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.