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Finding the Fourth Proportional to 1,702.58, 2,349.60 and 956.61

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Solution

The fourth proportional to 1,702.58, 2,349.60 and 956.61 is: 1,320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.58 : 2,349.60 = 956.61 : x
  2. Step 2: Convert to fraction form
    1,702.58/2,349.60 = 956.61/x
  3. Step 3: Cross multiply
    1,702.58x = 2,349.60 × 956.61
  4. Step 4: Simplify right side
    1,702.58x = 2,247,650.86
  5. Step 5: Solve for x
    x = 2,247,650.86/1,702.58
  6. Step 6: Final answer
    x = 1,320.14

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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.