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Finding the Fourth Proportional to 702,281.52, 969,144.24 and 396,456.84

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Solution

The fourth proportional to 702,281.52, 969,144.24 and 396,456.84 is: 547,108.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,281.52 : 969,144.24 = 396,456.84 : x
  2. Step 2: Convert to fraction form
    702,281.52/969,144.24 = 396,456.84/x
  3. Step 3: Cross multiply
    702,281.52x = 969,144.24 × 396,456.84
  4. Step 4: Simplify right side
    702,281.52x = 384,223,862,894.60
  5. Step 5: Solve for x
    x = 384,223,862,894.60/702,281.52
  6. Step 6: Final answer
    x = 547,108.04

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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.