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Finding the Fourth Proportional to 325,298.20, 487,944.60 and 88,640.50

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Solution

The fourth proportional to 325,298.20, 487,944.60 and 88,640.50 is: 132,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,298.20 : 487,944.60 = 88,640.50 : x
  2. Step 2: Convert to fraction form
    325,298.20/487,944.60 = 88,640.50/x
  3. Step 3: Cross multiply
    325,298.20x = 487,944.60 × 88,640.50
  4. Step 4: Simplify right side
    325,298.20x = 43,251,653,316.30
  5. Step 5: Solve for x
    x = 43,251,653,316.30/325,298.20
  6. Step 6: Final answer
    x = 132,960.01

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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.