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Finding the Fourth Proportional to 461,299, 636,592.62 and 249,331

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Solution

The fourth proportional to 461,299, 636,592.62 and 249,331 is: 344,076.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,299 : 636,592.62 = 249,331 : x
  2. Step 2: Convert to fraction form
    461,299/636,592.62 = 249,331/x
  3. Step 3: Cross multiply
    461,299x = 636,592.62 × 249,331
  4. Step 4: Simplify right side
    461,299x = 158,722,274,537.22
  5. Step 5: Solve for x
    x = 158,722,274,537.22/461,299
  6. Step 6: Final answer
    x = 344,076.78

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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.