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Finding the Fourth Proportional to 293,272.96, 439,905.60 and 71,658.88

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Solution

The fourth proportional to 293,272.96, 439,905.60 and 71,658.88 is: 107,487.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,272.96 : 439,905.60 = 71,658.88 : x
  2. Step 2: Convert to fraction form
    293,272.96/439,905.60 = 71,658.88/x
  3. Step 3: Cross multiply
    293,272.96x = 439,905.60 × 71,658.88
  4. Step 4: Simplify right side
    293,272.96x = 31,523,142,601.73
  5. Step 5: Solve for x
    x = 31,523,142,601.73/293,272.96
  6. Step 6: Final answer
    x = 107,487.38

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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.