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Finding the Fourth Proportional to 367,060.23, 550,412.35 and 215,306.90

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Solution

The fourth proportional to 367,060.23, 550,412.35 and 215,306.90 is: 322,855.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,060.23 : 550,412.35 = 215,306.90 : x
  2. Step 2: Convert to fraction form
    367,060.23/550,412.35 = 215,306.90/x
  3. Step 3: Cross multiply
    367,060.23x = 550,412.35 × 215,306.90
  4. Step 4: Simplify right side
    367,060.23x = 118,507,576,800.22
  5. Step 5: Solve for x
    x = 118,507,576,800.22/367,060.23
  6. Step 6: Final answer
    x = 322,855.94

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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.