Home / 764,113.20-1,146,169.80-203,204.40

Finding the Fourth Proportional to 764,113.20, 1,146,169.80 and 203,204.40

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Solution

The fourth proportional to 764,113.20, 1,146,169.80 and 203,204.40 is: 304,806.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,113.20 : 1,146,169.80 = 203,204.40 : x
  2. Step 2: Convert to fraction form
    764,113.20/1,146,169.80 = 203,204.40/x
  3. Step 3: Cross multiply
    764,113.20x = 1,146,169.80 × 203,204.40
  4. Step 4: Simplify right side
    764,113.20x = 232,906,746,507.12
  5. Step 5: Solve for x
    x = 232,906,746,507.12/764,113.20
  6. Step 6: Final answer
    x = 304,806.60

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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.