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Finding the Fourth Proportional to 1,613.70, 2,416.23 and 963.18

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Solution

The fourth proportional to 1,613.70, 2,416.23 and 963.18 is: 1,442.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.70 : 2,416.23 = 963.18 : x
  2. Step 2: Convert to fraction form
    1,613.70/2,416.23 = 963.18/x
  3. Step 3: Cross multiply
    1,613.70x = 2,416.23 × 963.18
  4. Step 4: Simplify right side
    1,613.70x = 2,327,264.41
  5. Step 5: Solve for x
    x = 2,327,264.41/1,613.70
  6. Step 6: Final answer
    x = 1,442.19

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1.5x scale

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.