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Finding the Fourth Proportional to 364,614.30, 546,921.45 and 321,311.70

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Solution

The fourth proportional to 364,614.30, 546,921.45 and 321,311.70 is: 481,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,614.30 : 546,921.45 = 321,311.70 : x
  2. Step 2: Convert to fraction form
    364,614.30/546,921.45 = 321,311.70/x
  3. Step 3: Cross multiply
    364,614.30x = 546,921.45 × 321,311.70
  4. Step 4: Simplify right side
    364,614.30x = 175,732,260,865.97
  5. Step 5: Solve for x
    x = 175,732,260,865.97/364,614.30
  6. Step 6: Final answer
    x = 481,967.55

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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.