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Finding the Fourth Proportional to 438,685.88, 605,386.71 and 237,481.88

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Solution

The fourth proportional to 438,685.88, 605,386.71 and 237,481.88 is: 327,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,685.88 : 605,386.71 = 237,481.88 : x
  2. Step 2: Convert to fraction form
    438,685.88/605,386.71 = 237,481.88/x
  3. Step 3: Cross multiply
    438,685.88x = 605,386.71 × 237,481.88
  4. Step 4: Simplify right side
    438,685.88x = 143,768,370,990.88
  5. Step 5: Solve for x
    x = 143,768,370,990.88/438,685.88
  6. Step 6: Final answer
    x = 327,725.10

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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.