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Finding the Fourth Proportional to 367,059.23, 550,410.85 and 215,305.90

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Solution

The fourth proportional to 367,059.23, 550,410.85 and 215,305.90 is: 322,854.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,059.23 : 550,410.85 = 215,305.90 : x
  2. Step 2: Convert to fraction form
    367,059.23/550,410.85 = 215,305.90/x
  3. Step 3: Cross multiply
    367,059.23x = 550,410.85 × 215,305.90
  4. Step 4: Simplify right side
    367,059.23x = 118,506,703,429.02
  5. Step 5: Solve for x
    x = 118,506,703,429.02/367,059.23
  6. Step 6: Final answer
    x = 322,854.44

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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.