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Finding the Fourth Proportional to 1,073.68, 1,482.15 and 675.69

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Solution

The fourth proportional to 1,073.68, 1,482.15 and 675.69 is: 932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.68 : 1,482.15 = 675.69 : x
  2. Step 2: Convert to fraction form
    1,073.68/1,482.15 = 675.69/x
  3. Step 3: Cross multiply
    1,073.68x = 1,482.15 × 675.69
  4. Step 4: Simplify right side
    1,073.68x = 1,001,475.45
  5. Step 5: Solve for x
    x = 1,001,475.45/1,073.68
  6. Step 6: Final answer
    x = 932.75

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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.