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Finding the Fourth Proportional to 453,151.21, 625,344.15 and 249,198.88

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Solution

The fourth proportional to 453,151.21, 625,344.15 and 249,198.88 is: 343,891.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,151.21 : 625,344.15 = 249,198.88 : x
  2. Step 2: Convert to fraction form
    453,151.21/625,344.15 = 249,198.88/x
  3. Step 3: Cross multiply
    453,151.21x = 625,344.15 × 249,198.88
  4. Step 4: Simplify right side
    453,151.21x = 155,835,061,794.55
  5. Step 5: Solve for x
    x = 155,835,061,794.55/453,151.21
  6. Step 6: Final answer
    x = 343,891.97

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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.