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Finding the Fourth Proportional to 589,511.10, 884,266.65 and 215,679.90

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Solution

The fourth proportional to 589,511.10, 884,266.65 and 215,679.90 is: 323,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,511.10 : 884,266.65 = 215,679.90 : x
  2. Step 2: Convert to fraction form
    589,511.10/884,266.65 = 215,679.90/x
  3. Step 3: Cross multiply
    589,511.10x = 884,266.65 × 215,679.90
  4. Step 4: Simplify right side
    589,511.10x = 190,718,542,645.34
  5. Step 5: Solve for x
    x = 190,718,542,645.34/589,511.10
  6. Step 6: Final answer
    x = 323,519.85

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Similar ratio
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1.5x scale

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.