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Finding the Fourth Proportional to 468,691.20, 646,795.44 and 253,830.60

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Solution

The fourth proportional to 468,691.20, 646,795.44 and 253,830.60 is: 350,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,691.20 : 646,795.44 = 253,830.60 : x
  2. Step 2: Convert to fraction form
    468,691.20/646,795.44 = 253,830.60/x
  3. Step 3: Cross multiply
    468,691.20x = 646,795.44 × 253,830.60
  4. Step 4: Simplify right side
    468,691.20x = 164,176,474,612.46
  5. Step 5: Solve for x
    x = 164,176,474,612.46/468,691.20
  6. Step 6: Final answer
    x = 350,287.09

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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.