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Finding the Fourth Proportional to 442,766.12, 664,471.76 and 176,602.74

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Solution

The fourth proportional to 442,766.12, 664,471.76 and 176,602.74 is: 265,032.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,766.12 : 664,471.76 = 176,602.74 : x
  2. Step 2: Convert to fraction form
    442,766.12/664,471.76 = 176,602.74/x
  3. Step 3: Cross multiply
    442,766.12x = 664,471.76 × 176,602.74
  4. Step 4: Simplify right side
    442,766.12x = 117,347,533,468.62
  5. Step 5: Solve for x
    x = 117,347,533,468.62/442,766.12
  6. Step 6: Final answer
    x = 265,032.78

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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.