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Finding the Fourth Proportional to 487,428.87, 730,964.22 and 167,490.01

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Solution

The fourth proportional to 487,428.87, 730,964.22 and 167,490.01 is: 251,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,428.87 : 730,964.22 = 167,490.01 : x
  2. Step 2: Convert to fraction form
    487,428.87/730,964.22 = 167,490.01/x
  3. Step 3: Cross multiply
    487,428.87x = 730,964.22 × 167,490.01
  4. Step 4: Simplify right side
    487,428.87x = 122,429,204,517.44
  5. Step 5: Solve for x
    x = 122,429,204,517.44/487,428.87
  6. Step 6: Final answer
    x = 251,173.48

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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.