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Finding the Fourth Proportional to 659,794.60, 988,817.10 and 584,561.80

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Solution

The fourth proportional to 659,794.60, 988,817.10 and 584,561.80 is: 876,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,794.60 : 988,817.10 = 584,561.80 : x
  2. Step 2: Convert to fraction form
    659,794.60/988,817.10 = 584,561.80/x
  3. Step 3: Cross multiply
    659,794.60x = 988,817.10 × 584,561.80
  4. Step 4: Simplify right side
    659,794.60x = 578,024,703,846.78
  5. Step 5: Solve for x
    x = 578,024,703,846.78/659,794.60
  6. Step 6: Final answer
    x = 876,067.65

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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.