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Finding the Fourth Proportional to 292,562.70, 438,844.05 and 239,418.60

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Solution

The fourth proportional to 292,562.70, 438,844.05 and 239,418.60 is: 359,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,562.70 : 438,844.05 = 239,418.60 : x
  2. Step 2: Convert to fraction form
    292,562.70/438,844.05 = 239,418.60/x
  3. Step 3: Cross multiply
    292,562.70x = 438,844.05 × 239,418.60
  4. Step 4: Simplify right side
    292,562.70x = 105,067,428,069.33
  5. Step 5: Solve for x
    x = 105,067,428,069.33/292,562.70
  6. Step 6: Final answer
    x = 359,127.90

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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.