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Finding the Fourth Proportional to 1,182.96, 1,632.46 and 741.11

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Solution

The fourth proportional to 1,182.96, 1,632.46 and 741.11 is: 1,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.96 : 1,632.46 = 741.11 : x
  2. Step 2: Convert to fraction form
    1,182.96/1,632.46 = 741.11/x
  3. Step 3: Cross multiply
    1,182.96x = 1,632.46 × 741.11
  4. Step 4: Simplify right side
    1,182.96x = 1,209,827.24
  5. Step 5: Solve for x
    x = 1,209,827.24/1,182.96
  6. Step 6: Final answer
    x = 1,022.71

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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.