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Finding the Fourth Proportional to 674,061.90, 929,778.24 and 512,562.90

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Solution

The fourth proportional to 674,061.90, 929,778.24 and 512,562.90 is: 707,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,061.90 : 929,778.24 = 512,562.90 : x
  2. Step 2: Convert to fraction form
    674,061.90/929,778.24 = 512,562.90/x
  3. Step 3: Cross multiply
    674,061.90x = 929,778.24 × 512,562.90
  4. Step 4: Simplify right side
    674,061.90x = 476,569,831,051.30
  5. Step 5: Solve for x
    x = 476,569,831,051.30/674,061.90
  6. Step 6: Final answer
    x = 707,011.97

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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.