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Finding the Fourth Proportional to 453,640.83, 626,019.42 and 249,687.39

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Solution

The fourth proportional to 453,640.83, 626,019.42 and 249,687.39 is: 344,565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,640.83 : 626,019.42 = 249,687.39 : x
  2. Step 2: Convert to fraction form
    453,640.83/626,019.42 = 249,687.39/x
  3. Step 3: Cross multiply
    453,640.83x = 626,019.42 × 249,687.39
  4. Step 4: Simplify right side
    453,640.83x = 156,309,153,820.68
  5. Step 5: Solve for x
    x = 156,309,153,820.68/453,640.83
  6. Step 6: Final answer
    x = 344,565.88

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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.