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Finding the Fourth Proportional to 572,854.40, 858,115.20 and 292,529.60

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Solution

The fourth proportional to 572,854.40, 858,115.20 and 292,529.60 is: 438,198.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,854.40 : 858,115.20 = 292,529.60 : x
  2. Step 2: Convert to fraction form
    572,854.40/858,115.20 = 292,529.60/x
  3. Step 3: Cross multiply
    572,854.40x = 858,115.20 × 292,529.60
  4. Step 4: Simplify right side
    572,854.40x = 251,024,096,209.92
  5. Step 5: Solve for x
    x = 251,024,096,209.92/572,854.40
  6. Step 6: Final answer
    x = 438,198.77

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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.