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Finding the Fourth Proportional to 581,095.62, 871,609.59 and 261,165.06

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Solution

The fourth proportional to 581,095.62, 871,609.59 and 261,165.06 is: 391,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,095.62 : 871,609.59 = 261,165.06 : x
  2. Step 2: Convert to fraction form
    581,095.62/871,609.59 = 261,165.06/x
  3. Step 3: Cross multiply
    581,095.62x = 871,609.59 × 261,165.06
  4. Step 4: Simplify right side
    581,095.62x = 227,633,970,868.93
  5. Step 5: Solve for x
    x = 227,633,970,868.93/581,095.62
  6. Step 6: Final answer
    x = 391,732.38

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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.