Home / 486,194.13-729,291.20-131,208.12

Finding the Fourth Proportional to 486,194.13, 729,291.20 and 131,208.12

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Solution

The fourth proportional to 486,194.13, 729,291.20 and 131,208.12 is: 196,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,194.13 : 729,291.20 = 131,208.12 : x
  2. Step 2: Convert to fraction form
    486,194.13/729,291.20 = 131,208.12/x
  3. Step 3: Cross multiply
    486,194.13x = 729,291.20 × 131,208.12
  4. Step 4: Simplify right side
    486,194.13x = 95,688,926,628.50
  5. Step 5: Solve for x
    x = 95,688,926,628.50/486,194.13
  6. Step 6: Final answer
    x = 196,812.18

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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.