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Finding the Fourth Proportional to 322,737.76, 445,351.60 and 186,781.68

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Solution

The fourth proportional to 322,737.76, 445,351.60 and 186,781.68 is: 257,743.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,737.76 : 445,351.60 = 186,781.68 : x
  2. Step 2: Convert to fraction form
    322,737.76/445,351.60 = 186,781.68/x
  3. Step 3: Cross multiply
    322,737.76x = 445,351.60 × 186,781.68
  4. Step 4: Simplify right side
    322,737.76x = 83,183,520,038.69
  5. Step 5: Solve for x
    x = 83,183,520,038.69/322,737.76
  6. Step 6: Final answer
    x = 257,743.38

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1.5x scale

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.