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Finding the Fourth Proportional to 576,044.20, 865,103.10 and 557,381.80

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Solution

The fourth proportional to 576,044.20, 865,103.10 and 557,381.80 is: 837,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,044.20 : 865,103.10 = 557,381.80 : x
  2. Step 2: Convert to fraction form
    576,044.20/865,103.10 = 557,381.80/x
  3. Step 3: Cross multiply
    576,044.20x = 865,103.10 × 557,381.80
  4. Step 4: Simplify right side
    576,044.20x = 482,192,723,063.58
  5. Step 5: Solve for x
    x = 482,192,723,063.58/576,044.20
  6. Step 6: Final answer
    x = 837,075.91

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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.