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Finding the Fourth Proportional to 1,663.16, 2,295.24 and 955.26

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Solution

The fourth proportional to 1,663.16, 2,295.24 and 955.26 is: 1,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.16 : 2,295.24 = 955.26 : x
  2. Step 2: Convert to fraction form
    1,663.16/2,295.24 = 955.26/x
  3. Step 3: Cross multiply
    1,663.16x = 2,295.24 × 955.26
  4. Step 4: Simplify right side
    1,663.16x = 2,192,550.96
  5. Step 5: Solve for x
    x = 2,192,550.96/1,663.16
  6. Step 6: Final answer
    x = 1,318.30

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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.