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Finding the Fourth Proportional to 475,860.56, 656,690.80 and 261,002.12

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Solution

The fourth proportional to 475,860.56, 656,690.80 and 261,002.12 is: 360,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,860.56 : 656,690.80 = 261,002.12 : x
  2. Step 2: Convert to fraction form
    475,860.56/656,690.80 = 261,002.12/x
  3. Step 3: Cross multiply
    475,860.56x = 656,690.80 × 261,002.12
  4. Step 4: Simplify right side
    475,860.56x = 171,397,690,984.50
  5. Step 5: Solve for x
    x = 171,397,690,984.50/475,860.56
  6. Step 6: Final answer
    x = 360,184.70

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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.