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Finding the Fourth Proportional to 1,276.04, 1,761.17 and 833.16

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Solution

The fourth proportional to 1,276.04, 1,761.17 and 833.16 is: 1,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276.04 : 1,761.17 = 833.16 : x
  2. Step 2: Convert to fraction form
    1,276.04/1,761.17 = 833.16/x
  3. Step 3: Cross multiply
    1,276.04x = 1,761.17 × 833.16
  4. Step 4: Simplify right side
    1,276.04x = 1,467,332.23
  5. Step 5: Solve for x
    x = 1,467,332.23/1,276.04
  6. Step 6: Final answer
    x = 1,149.92

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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.