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Finding the Fourth Proportional to 652,718.56, 978,899.52 and 179,291.20

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Solution

The fourth proportional to 652,718.56, 978,899.52 and 179,291.20 is: 268,887.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,718.56 : 978,899.52 = 179,291.20 : x
  2. Step 2: Convert to fraction form
    652,718.56/978,899.52 = 179,291.20/x
  3. Step 3: Cross multiply
    652,718.56x = 978,899.52 × 179,291.20
  4. Step 4: Simplify right side
    652,718.56x = 175,508,069,620.22
  5. Step 5: Solve for x
    x = 175,508,069,620.22/652,718.56
  6. Step 6: Final answer
    x = 268,887.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.