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Finding the Fourth Proportional to 618,344.32, 926,183.40 and 417,560.62

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Solution

The fourth proportional to 618,344.32, 926,183.40 and 417,560.62 is: 625,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,344.32 : 926,183.40 = 417,560.62 : x
  2. Step 2: Convert to fraction form
    618,344.32/926,183.40 = 417,560.62/x
  3. Step 3: Cross multiply
    618,344.32x = 926,183.40 × 417,560.62
  4. Step 4: Simplify right side
    618,344.32x = 386,737,712,649.91
  5. Step 5: Solve for x
    x = 386,737,712,649.91/618,344.32
  6. Step 6: Final answer
    x = 625,440.71

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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.