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Finding the Fourth Proportional to 618,902.71, 927,246.90 and 523,686.20

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Solution

The fourth proportional to 618,902.71, 927,246.90 and 523,686.20 is: 784,592.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,902.71 : 927,246.90 = 523,686.20 : x
  2. Step 2: Convert to fraction form
    618,902.71/927,246.90 = 523,686.20/x
  3. Step 3: Cross multiply
    618,902.71x = 927,246.90 × 523,686.20
  4. Step 4: Simplify right side
    618,902.71x = 485,586,405,522.78
  5. Step 5: Solve for x
    x = 485,586,405,522.78/618,902.71
  6. Step 6: Final answer
    x = 784,592.47

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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.