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Finding the Fourth Proportional to 437,611.20, 654,958.80 and 317,326.20

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Solution

The fourth proportional to 437,611.20, 654,958.80 and 317,326.20 is: 474,932.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,611.20 : 654,958.80 = 317,326.20 : x
  2. Step 2: Convert to fraction form
    437,611.20/654,958.80 = 317,326.20/x
  3. Step 3: Cross multiply
    437,611.20x = 654,958.80 × 317,326.20
  4. Step 4: Simplify right side
    437,611.20x = 207,835,587,160.56
  5. Step 5: Solve for x
    x = 207,835,587,160.56/437,611.20
  6. Step 6: Final answer
    x = 474,932.06

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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.