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Finding the Fourth Proportional to 443,308.68, 611,721.80 and 249,711.00

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Solution

The fourth proportional to 443,308.68, 611,721.80 and 249,711.00 is: 344,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,308.68 : 611,721.80 = 249,711.00 : x
  2. Step 2: Convert to fraction form
    443,308.68/611,721.80 = 249,711.00/x
  3. Step 3: Cross multiply
    443,308.68x = 611,721.80 × 249,711.00
  4. Step 4: Simplify right side
    443,308.68x = 152,753,660,241.47
  5. Step 5: Solve for x
    x = 152,753,660,241.47/443,308.68
  6. Step 6: Final answer
    x = 344,576.29

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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.