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Finding the Fourth Proportional to 404,787.71, 558,615.76 and 223,511.15

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Solution

The fourth proportional to 404,787.71, 558,615.76 and 223,511.15 is: 308,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,787.71 : 558,615.76 = 223,511.15 : x
  2. Step 2: Convert to fraction form
    404,787.71/558,615.76 = 223,511.15/x
  3. Step 3: Cross multiply
    404,787.71x = 558,615.76 × 223,511.15
  4. Step 4: Simplify right side
    404,787.71x = 124,856,851,763.49
  5. Step 5: Solve for x
    x = 124,856,851,763.49/404,787.71
  6. Step 6: Final answer
    x = 308,450.20

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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.