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Finding the Fourth Proportional to 662,531.61, 914,194.22 and 372,132.03

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Solution

The fourth proportional to 662,531.61, 914,194.22 and 372,132.03 is: 513,486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,531.61 : 914,194.22 = 372,132.03 : x
  2. Step 2: Convert to fraction form
    662,531.61/914,194.22 = 372,132.03/x
  3. Step 3: Cross multiply
    662,531.61x = 914,194.22 × 372,132.03
  4. Step 4: Simplify right side
    662,531.61x = 340,200,949,042.21
  5. Step 5: Solve for x
    x = 340,200,949,042.21/662,531.61
  6. Step 6: Final answer
    x = 513,486.37

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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.