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Finding the Fourth Proportional to 322,562.70, 445,142.07 and 177,374.70

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Solution

The fourth proportional to 322,562.70, 445,142.07 and 177,374.70 is: 244,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,562.70 : 445,142.07 = 177,374.70 : x
  2. Step 2: Convert to fraction form
    322,562.70/445,142.07 = 177,374.70/x
  3. Step 3: Cross multiply
    322,562.70x = 445,142.07 × 177,374.70
  4. Step 4: Simplify right side
    322,562.70x = 78,956,941,123.63
  5. Step 5: Solve for x
    x = 78,956,941,123.63/322,562.70
  6. Step 6: Final answer
    x = 244,780.13

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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.