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Finding the Fourth Proportional to 1,479.68, 2,041.04 and 956.08

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Solution

The fourth proportional to 1,479.68, 2,041.04 and 956.08 is: 1,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.68 : 2,041.04 = 956.08 : x
  2. Step 2: Convert to fraction form
    1,479.68/2,041.04 = 956.08/x
  3. Step 3: Cross multiply
    1,479.68x = 2,041.04 × 956.08
  4. Step 4: Simplify right side
    1,479.68x = 1,951,397.52
  5. Step 5: Solve for x
    x = 1,951,397.52/1,479.68
  6. Step 6: Final answer
    x = 1,318.80

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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.