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Finding the Fourth Proportional to 1,702.17, 2,349.20 and 956.16

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Solution

The fourth proportional to 1,702.17, 2,349.20 and 956.16 is: 1,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.17 : 2,349.20 = 956.16 : x
  2. Step 2: Convert to fraction form
    1,702.17/2,349.20 = 956.16/x
  3. Step 3: Cross multiply
    1,702.17x = 2,349.20 × 956.16
  4. Step 4: Simplify right side
    1,702.17x = 2,246,213.46
  5. Step 5: Solve for x
    x = 2,246,213.46/1,702.17
  6. Step 6: Final answer
    x = 1,319.62

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1.5x scale

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.