Home / 659,904.36-989,856.18-239,179.56

Finding the Fourth Proportional to 659,904.36, 989,856.18 and 239,179.56

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Solution

The fourth proportional to 659,904.36, 989,856.18 and 239,179.56 is: 358,769.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,904.36 : 989,856.18 = 239,179.56 : x
  2. Step 2: Convert to fraction form
    659,904.36/989,856.18 = 239,179.56/x
  3. Step 3: Cross multiply
    659,904.36x = 989,856.18 × 239,179.56
  4. Step 4: Simplify right side
    659,904.36x = 236,753,365,595.68
  5. Step 5: Solve for x
    x = 236,753,365,595.68/659,904.36
  6. Step 6: Final answer
    x = 358,769.21

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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.