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Finding the Fourth Proportional to 581,379.96, 871,073.40 and 461,805.72

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Solution

The fourth proportional to 581,379.96, 871,073.40 and 461,805.72 is: 691,917.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,379.96 : 871,073.40 = 461,805.72 : x
  2. Step 2: Convert to fraction form
    581,379.96/871,073.40 = 461,805.72/x
  3. Step 3: Cross multiply
    581,379.96x = 871,073.40 × 461,805.72
  4. Step 4: Simplify right side
    581,379.96x = 402,266,678,659.85
  5. Step 5: Solve for x
    x = 402,266,678,659.85/581,379.96
  6. Step 6: Final answer
    x = 691,917.00

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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.