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Finding the Fourth Proportional to 453,641.33, 626,020.11 and 249,687.89

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Solution

The fourth proportional to 453,641.33, 626,020.11 and 249,687.89 is: 344,566.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,641.33 : 626,020.11 = 249,687.89 : x
  2. Step 2: Convert to fraction form
    453,641.33/626,020.11 = 249,687.89/x
  3. Step 3: Cross multiply
    453,641.33x = 626,020.11 × 249,687.89
  4. Step 4: Simplify right side
    453,641.33x = 156,309,640,363.47
  5. Step 5: Solve for x
    x = 156,309,640,363.47/453,641.33
  6. Step 6: Final answer
    x = 344,566.58

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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.