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Finding the Fourth Proportional to 491,367.60, 736,429.20 and 238,705.92

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Solution

The fourth proportional to 491,367.60, 736,429.20 and 238,705.92 is: 357,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,367.60 : 736,429.20 = 238,705.92 : x
  2. Step 2: Convert to fraction form
    491,367.60/736,429.20 = 238,705.92/x
  3. Step 3: Cross multiply
    491,367.60x = 736,429.20 × 238,705.92
  4. Step 4: Simplify right side
    491,367.60x = 175,790,009,700.86
  5. Step 5: Solve for x
    x = 175,790,009,700.86/491,367.60
  6. Step 6: Final answer
    x = 357,756.62

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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.