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Finding the Fourth Proportional to 1,060.65, 1,591.65 and 573.84

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Solution

The fourth proportional to 1,060.65, 1,591.65 and 573.84 is: 861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.65 : 1,591.65 = 573.84 : x
  2. Step 2: Convert to fraction form
    1,060.65/1,591.65 = 573.84/x
  3. Step 3: Cross multiply
    1,060.65x = 1,591.65 × 573.84
  4. Step 4: Simplify right side
    1,060.65x = 913,352.44
  5. Step 5: Solve for x
    x = 913,352.44/1,060.65
  6. Step 6: Final answer
    x = 861.13

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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.