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Finding the Fourth Proportional to 589,487.10, 884,230.65 and 215,655.90

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Solution

The fourth proportional to 589,487.10, 884,230.65 and 215,655.90 is: 323,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,487.10 : 884,230.65 = 215,655.90 : x
  2. Step 2: Convert to fraction form
    589,487.10/884,230.65 = 215,655.90/x
  3. Step 3: Cross multiply
    589,487.10x = 884,230.65 × 215,655.90
  4. Step 4: Simplify right side
    589,487.10x = 190,689,556,633.34
  5. Step 5: Solve for x
    x = 190,689,556,633.34/589,487.10
  6. Step 6: Final answer
    x = 323,483.85

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Double scale
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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.