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Finding the Fourth Proportional to 553,691.28, 829,889.02 and 254,200.77

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Solution

The fourth proportional to 553,691.28, 829,889.02 and 254,200.77 is: 381,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,691.28 : 829,889.02 = 254,200.77 : x
  2. Step 2: Convert to fraction form
    553,691.28/829,889.02 = 254,200.77/x
  3. Step 3: Cross multiply
    553,691.28x = 829,889.02 × 254,200.77
  4. Step 4: Simplify right side
    553,691.28x = 210,958,427,898.55
  5. Step 5: Solve for x
    x = 210,958,427,898.55/553,691.28
  6. Step 6: Final answer
    x = 381,003.70

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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.