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Finding the Fourth Proportional to 490,487.92, 735,789.48 and 174,989.68

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Solution

The fourth proportional to 490,487.92, 735,789.48 and 174,989.68 is: 262,505.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,487.92 : 735,789.48 = 174,989.68 : x
  2. Step 2: Convert to fraction form
    490,487.92/735,789.48 = 174,989.68/x
  3. Step 3: Cross multiply
    490,487.92x = 735,789.48 × 174,989.68
  4. Step 4: Simplify right side
    490,487.92x = 128,755,565,652.57
  5. Step 5: Solve for x
    x = 128,755,565,652.57/490,487.92
  6. Step 6: Final answer
    x = 262,505.07

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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.