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Finding the Fourth Proportional to 367,071.10, 550,606.65 and 328,579.90

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Solution

The fourth proportional to 367,071.10, 550,606.65 and 328,579.90 is: 492,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,071.10 : 550,606.65 = 328,579.90 : x
  2. Step 2: Convert to fraction form
    367,071.10/550,606.65 = 328,579.90/x
  3. Step 3: Cross multiply
    367,071.10x = 550,606.65 × 328,579.90
  4. Step 4: Simplify right side
    367,071.10x = 180,918,277,996.34
  5. Step 5: Solve for x
    x = 180,918,277,996.34/367,071.10
  6. Step 6: Final answer
    x = 492,869.85

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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.