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Finding the Fourth Proportional to 443,863.26, 612,359.19 and 282,689.46

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Solution

The fourth proportional to 443,863.26, 612,359.19 and 282,689.46 is: 390,001.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,863.26 : 612,359.19 = 282,689.46 : x
  2. Step 2: Convert to fraction form
    443,863.26/612,359.19 = 282,689.46/x
  3. Step 3: Cross multiply
    443,863.26x = 612,359.19 × 282,689.46
  4. Step 4: Simplify right side
    443,863.26x = 173,107,488,747.14
  5. Step 5: Solve for x
    x = 173,107,488,747.14/443,863.26
  6. Step 6: Final answer
    x = 390,001.84

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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.