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Finding the Fourth Proportional to 453,170.31, 625,362.54 and 249,221.23

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Solution

The fourth proportional to 453,170.31, 625,362.54 and 249,221.23 is: 343,918.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,170.31 : 625,362.54 = 249,221.23 : x
  2. Step 2: Convert to fraction form
    453,170.31/625,362.54 = 249,221.23/x
  3. Step 3: Cross multiply
    453,170.31x = 625,362.54 × 249,221.23
  4. Step 4: Simplify right side
    453,170.31x = 155,853,621,414.72
  5. Step 5: Solve for x
    x = 155,853,621,414.72/453,170.31
  6. Step 6: Final answer
    x = 343,918.43

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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.