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Finding the Fourth Proportional to 576,176.80, 864,265.20 and 534,186.40

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Solution

The fourth proportional to 576,176.80, 864,265.20 and 534,186.40 is: 801,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,176.80 : 864,265.20 = 534,186.40 : x
  2. Step 2: Convert to fraction form
    576,176.80/864,265.20 = 534,186.40/x
  3. Step 3: Cross multiply
    576,176.80x = 864,265.20 × 534,186.40
  4. Step 4: Simplify right side
    576,176.80x = 461,678,715,833.28
  5. Step 5: Solve for x
    x = 461,678,715,833.28/576,176.80
  6. Step 6: Final answer
    x = 801,279.60

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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.