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Finding the Fourth Proportional to 576,048.20, 865,109.10 and 557,385.80

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Solution

The fourth proportional to 576,048.20, 865,109.10 and 557,385.80 is: 837,081.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,048.20 : 865,109.10 = 557,385.80 : x
  2. Step 2: Convert to fraction form
    576,048.20/865,109.10 = 557,385.80/x
  3. Step 3: Cross multiply
    576,048.20x = 865,109.10 × 557,385.80
  4. Step 4: Simplify right side
    576,048.20x = 482,199,527,790.78
  5. Step 5: Solve for x
    x = 482,199,527,790.78/576,048.20
  6. Step 6: Final answer
    x = 837,081.91

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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.