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Finding the Fourth Proportional to 453,680.80, 680,488.39 and 216,959.92

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Solution

The fourth proportional to 453,680.80, 680,488.39 and 216,959.92 is: 325,424.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,680.80 : 680,488.39 = 216,959.92 : x
  2. Step 2: Convert to fraction form
    453,680.80/680,488.39 = 216,959.92/x
  3. Step 3: Cross multiply
    453,680.80x = 680,488.39 × 216,959.92
  4. Step 4: Simplify right side
    453,680.80x = 147,638,706,655.33
  5. Step 5: Solve for x
    x = 147,638,706,655.33/453,680.80
  6. Step 6: Final answer
    x = 325,424.19

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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.