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Finding the Fourth Proportional to 535,481.22, 803,296.98 and 156,429.78

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Solution

The fourth proportional to 535,481.22, 803,296.98 and 156,429.78 is: 234,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,481.22 : 803,296.98 = 156,429.78 : x
  2. Step 2: Convert to fraction form
    535,481.22/803,296.98 = 156,429.78/x
  3. Step 3: Cross multiply
    535,481.22x = 803,296.98 × 156,429.78
  4. Step 4: Simplify right side
    535,481.22x = 125,659,569,856.06
  5. Step 5: Solve for x
    x = 125,659,569,856.06/535,481.22
  6. Step 6: Final answer
    x = 234,666.62

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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.