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Finding the Fourth Proportional to 1,702.63, 2,349.65 and 946.42

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Solution

The fourth proportional to 1,702.63, 2,349.65 and 946.42 is: 1,306.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.63 : 2,349.65 = 946.42 : x
  2. Step 2: Convert to fraction form
    1,702.63/2,349.65 = 946.42/x
  3. Step 3: Cross multiply
    1,702.63x = 2,349.65 × 946.42
  4. Step 4: Simplify right side
    1,702.63x = 2,223,755.75
  5. Step 5: Solve for x
    x = 2,223,755.75/1,702.63
  6. Step 6: Final answer
    x = 1,306.07

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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.