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Finding the Fourth Proportional to 587,170.56, 810,299.52 and 318,898.56

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Solution

The fourth proportional to 587,170.56, 810,299.52 and 318,898.56 is: 440,082.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,170.56 : 810,299.52 = 318,898.56 : x
  2. Step 2: Convert to fraction form
    587,170.56/810,299.52 = 318,898.56/x
  3. Step 3: Cross multiply
    587,170.56x = 810,299.52 × 318,898.56
  4. Step 4: Simplify right side
    587,170.56x = 258,403,350,096.69
  5. Step 5: Solve for x
    x = 258,403,350,096.69/587,170.56
  6. Step 6: Final answer
    x = 440,082.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.