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Finding the Fourth Proportional to 425,766.78, 587,338.29 and 264,560.58

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Solution

The fourth proportional to 425,766.78, 587,338.29 and 264,560.58 is: 364,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,766.78 : 587,338.29 = 264,560.58 : x
  2. Step 2: Convert to fraction form
    425,766.78/587,338.29 = 264,560.58/x
  3. Step 3: Cross multiply
    425,766.78x = 587,338.29 × 264,560.58
  4. Step 4: Simplify right side
    425,766.78x = 155,386,558,658.61
  5. Step 5: Solve for x
    x = 155,386,558,658.61/425,766.78
  6. Step 6: Final answer
    x = 364,956.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.