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Finding the Fourth Proportional to 576,052.20, 865,115.10 and 557,389.80

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Solution

The fourth proportional to 576,052.20, 865,115.10 and 557,389.80 is: 837,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,052.20 : 865,115.10 = 557,389.80 : x
  2. Step 2: Convert to fraction form
    576,052.20/865,115.10 = 557,389.80/x
  3. Step 3: Cross multiply
    576,052.20x = 865,115.10 × 557,389.80
  4. Step 4: Simplify right side
    576,052.20x = 482,206,332,565.98
  5. Step 5: Solve for x
    x = 482,206,332,565.98/576,052.20
  6. Step 6: Final answer
    x = 837,087.91

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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.