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Finding the Fourth Proportional to 1,560.71, 2,339.11 and 1,003.93

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Solution

The fourth proportional to 1,560.71, 2,339.11 and 1,003.93 is: 1,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.71 : 2,339.11 = 1,003.93 : x
  2. Step 2: Convert to fraction form
    1,560.71/2,339.11 = 1,003.93/x
  3. Step 3: Cross multiply
    1,560.71x = 2,339.11 × 1,003.93
  4. Step 4: Simplify right side
    1,560.71x = 2,348,311.27
  5. Step 5: Solve for x
    x = 2,348,311.27/1,560.71
  6. Step 6: Final answer
    x = 1,504.65

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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.