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Finding the Fourth Proportional to 367,041.23, 550,383.85 and 215,287.90

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Solution

The fourth proportional to 367,041.23, 550,383.85 and 215,287.90 is: 322,827.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,041.23 : 550,383.85 = 215,287.90 : x
  2. Step 2: Convert to fraction form
    367,041.23/550,383.85 = 215,287.90/x
  3. Step 3: Cross multiply
    367,041.23x = 550,383.85 × 215,287.90
  4. Step 4: Simplify right side
    367,041.23x = 118,490,983,260.42
  5. Step 5: Solve for x
    x = 118,490,983,260.42/367,041.23
  6. Step 6: Final answer
    x = 322,827.45

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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.