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Finding the Fourth Proportional to 453,197.87, 625,419.92 and 249,257.51

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Solution

The fourth proportional to 453,197.87, 625,419.92 and 249,257.51 is: 343,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,197.87 : 625,419.92 = 249,257.51 : x
  2. Step 2: Convert to fraction form
    453,197.87/625,419.92 = 249,257.51/x
  3. Step 3: Cross multiply
    453,197.87x = 625,419.92 × 249,257.51
  4. Step 4: Simplify right side
    453,197.87x = 155,890,610,717.31
  5. Step 5: Solve for x
    x = 155,890,610,717.31/453,197.87
  6. Step 6: Final answer
    x = 343,979.13

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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.