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Finding the Fourth Proportional to 442,759.52, 611,165.90 and 261,472.19

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Solution

The fourth proportional to 442,759.52, 611,165.90 and 261,472.19 is: 360,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,759.52 : 611,165.90 = 261,472.19 : x
  2. Step 2: Convert to fraction form
    442,759.52/611,165.90 = 261,472.19/x
  3. Step 3: Cross multiply
    442,759.52x = 611,165.90 × 261,472.19
  4. Step 4: Simplify right side
    442,759.52x = 159,802,883,924.17
  5. Step 5: Solve for x
    x = 159,802,883,924.17/442,759.52
  6. Step 6: Final answer
    x = 360,924.78

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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.