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Finding the Fourth Proportional to 366,301.80, 548,934.30 and 321,719.40

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Solution

The fourth proportional to 366,301.80, 548,934.30 and 321,719.40 is: 482,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,301.80 : 548,934.30 = 321,719.40 : x
  2. Step 2: Convert to fraction form
    366,301.80/548,934.30 = 321,719.40/x
  3. Step 3: Cross multiply
    366,301.80x = 548,934.30 × 321,719.40
  4. Step 4: Simplify right side
    366,301.80x = 176,602,813,635.42
  5. Step 5: Solve for x
    x = 176,602,813,635.42/366,301.80
  6. Step 6: Final answer
    x = 482,123.79

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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.