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Finding the Fourth Proportional to 443,309.41, 611,732.30 and 249,708.66

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Solution

The fourth proportional to 443,309.41, 611,732.30 and 249,708.66 is: 344,578.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,309.41 : 611,732.30 = 249,708.66 : x
  2. Step 2: Convert to fraction form
    443,309.41/611,732.30 = 249,708.66/x
  3. Step 3: Cross multiply
    443,309.41x = 611,732.30 × 249,708.66
  4. Step 4: Simplify right side
    443,309.41x = 152,754,852,911.72
  5. Step 5: Solve for x
    x = 152,754,852,911.72/443,309.41
  6. Step 6: Final answer
    x = 344,578.41

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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.