Home / 521,134.40-781,701.60-184,555.10

Finding the Fourth Proportional to 521,134.40, 781,701.60 and 184,555.10

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Solution

The fourth proportional to 521,134.40, 781,701.60 and 184,555.10 is: 276,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,134.40 : 781,701.60 = 184,555.10 : x
  2. Step 2: Convert to fraction form
    521,134.40/781,701.60 = 184,555.10/x
  3. Step 3: Cross multiply
    521,134.40x = 781,701.60 × 184,555.10
  4. Step 4: Simplify right side
    521,134.40x = 144,267,016,958.16
  5. Step 5: Solve for x
    x = 144,267,016,958.16/521,134.40
  6. Step 6: Final answer
    x = 276,832.65

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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.