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Finding the Fourth Proportional to 653,817.56, 980,724.90 and 174,045.47

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Solution

The fourth proportional to 653,817.56, 980,724.90 and 174,045.47 is: 261,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,817.56 : 980,724.90 = 174,045.47 : x
  2. Step 2: Convert to fraction form
    653,817.56/980,724.90 = 174,045.47/x
  3. Step 3: Cross multiply
    653,817.56x = 980,724.90 × 174,045.47
  4. Step 4: Simplify right side
    653,817.56x = 170,690,722,839.16
  5. Step 5: Solve for x
    x = 170,690,722,839.16/653,817.56
  6. Step 6: Final answer
    x = 261,067.82

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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.