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Finding the Fourth Proportional to 363,189.81, 501,199.56 and 199,856.25

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Solution

The fourth proportional to 363,189.81, 501,199.56 and 199,856.25 is: 275,800.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,189.81 : 501,199.56 = 199,856.25 : x
  2. Step 2: Convert to fraction form
    363,189.81/501,199.56 = 199,856.25/x
  3. Step 3: Cross multiply
    363,189.81x = 501,199.56 × 199,856.25
  4. Step 4: Simplify right side
    363,189.81x = 100,167,864,563.25
  5. Step 5: Solve for x
    x = 100,167,864,563.25/363,189.81
  6. Step 6: Final answer
    x = 275,800.32

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.