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Finding the Fourth Proportional to 482,600.40, 723,900.60 and 127,650.30

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Solution

The fourth proportional to 482,600.40, 723,900.60 and 127,650.30 is: 191,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,600.40 : 723,900.60 = 127,650.30 : x
  2. Step 2: Convert to fraction form
    482,600.40/723,900.60 = 127,650.30/x
  3. Step 3: Cross multiply
    482,600.40x = 723,900.60 × 127,650.30
  4. Step 4: Simplify right side
    482,600.40x = 92,406,128,760.18
  5. Step 5: Solve for x
    x = 92,406,128,760.18/482,600.40
  6. Step 6: Final answer
    x = 191,475.45

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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.