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Finding the Fourth Proportional to 561,648.20, 842,472.30 and 351,696.20

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Solution

The fourth proportional to 561,648.20, 842,472.30 and 351,696.20 is: 527,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,648.20 : 842,472.30 = 351,696.20 : x
  2. Step 2: Convert to fraction form
    561,648.20/842,472.30 = 351,696.20/x
  3. Step 3: Cross multiply
    561,648.20x = 842,472.30 × 351,696.20
  4. Step 4: Simplify right side
    561,648.20x = 296,294,306,515.26
  5. Step 5: Solve for x
    x = 296,294,306,515.26/561,648.20
  6. Step 6: Final answer
    x = 527,544.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.