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Finding the Fourth Proportional to 576,306.30, 864,391.41 and 155,614.98

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Solution

The fourth proportional to 576,306.30, 864,391.41 and 155,614.98 is: 233,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,306.30 : 864,391.41 = 155,614.98 : x
  2. Step 2: Convert to fraction form
    576,306.30/864,391.41 = 155,614.98/x
  3. Step 3: Cross multiply
    576,306.30x = 864,391.41 × 155,614.98
  4. Step 4: Simplify right side
    576,306.30x = 134,512,251,979.32
  5. Step 5: Solve for x
    x = 134,512,251,979.32/576,306.30
  6. Step 6: Final answer
    x = 233,404.10

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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.