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Finding the Fourth Proportional to 283,489.60, 425,009.62 and 148,527.78

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Solution

The fourth proportional to 283,489.60, 425,009.62 and 148,527.78 is: 222,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,489.60 : 425,009.62 = 148,527.78 : x
  2. Step 2: Convert to fraction form
    283,489.60/425,009.62 = 148,527.78/x
  3. Step 3: Cross multiply
    283,489.60x = 425,009.62 × 148,527.78
  4. Step 4: Simplify right side
    283,489.60x = 63,125,734,965.92
  5. Step 5: Solve for x
    x = 63,125,734,965.92/283,489.60
  6. Step 6: Final answer
    x = 222,673.90

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1.5x scale

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.