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Finding the Fourth Proportional to 1,134.65, 1,700.70 and 586.85

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Solution

The fourth proportional to 1,134.65, 1,700.70 and 586.85 is: 879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.65 : 1,700.70 = 586.85 : x
  2. Step 2: Convert to fraction form
    1,134.65/1,700.70 = 586.85/x
  3. Step 3: Cross multiply
    1,134.65x = 1,700.70 × 586.85
  4. Step 4: Simplify right side
    1,134.65x = 998,055.80
  5. Step 5: Solve for x
    x = 998,055.80/1,134.65
  6. Step 6: Final answer
    x = 879.62

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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.