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Finding the Fourth Proportional to 587,049.80, 879,537.90 and 365,174.60

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Solution

The fourth proportional to 587,049.80, 879,537.90 and 365,174.60 is: 547,116.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,049.80 : 879,537.90 = 365,174.60 : x
  2. Step 2: Convert to fraction form
    587,049.80/879,537.90 = 365,174.60/x
  3. Step 3: Cross multiply
    587,049.80x = 879,537.90 × 365,174.60
  4. Step 4: Simplify right side
    587,049.80x = 321,184,900,817.34
  5. Step 5: Solve for x
    x = 321,184,900,817.34/587,049.80
  6. Step 6: Final answer
    x = 547,116.96

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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.