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Finding the Fourth Proportional to 432,879.10, 649,318.65 and 327,903.10

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Solution

The fourth proportional to 432,879.10, 649,318.65 and 327,903.10 is: 491,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,879.10 : 649,318.65 = 327,903.10 : x
  2. Step 2: Convert to fraction form
    432,879.10/649,318.65 = 327,903.10/x
  3. Step 3: Cross multiply
    432,879.10x = 649,318.65 × 327,903.10
  4. Step 4: Simplify right side
    432,879.10x = 212,913,598,222.82
  5. Step 5: Solve for x
    x = 212,913,598,222.82/432,879.10
  6. Step 6: Final answer
    x = 491,854.65

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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.