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Finding the Fourth Proportional to 1,192.93, 1,644.25 and 956.46

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Solution

The fourth proportional to 1,192.93, 1,644.25 and 956.46 is: 1,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.93 : 1,644.25 = 956.46 : x
  2. Step 2: Convert to fraction form
    1,192.93/1,644.25 = 956.46/x
  3. Step 3: Cross multiply
    1,192.93x = 1,644.25 × 956.46
  4. Step 4: Simplify right side
    1,192.93x = 1,572,655.67
  5. Step 5: Solve for x
    x = 1,572,655.67/1,192.93
  6. Step 6: Final answer
    x = 1,318.32

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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.