Home / 764,117.10-1,146,175.65-409,823.10

Finding the Fourth Proportional to 764,117.10, 1,146,175.65 and 409,823.10

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Solution

The fourth proportional to 764,117.10, 1,146,175.65 and 409,823.10 is: 614,734.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,117.10 : 1,146,175.65 = 409,823.10 : x
  2. Step 2: Convert to fraction form
    764,117.10/1,146,175.65 = 409,823.10/x
  3. Step 3: Cross multiply
    764,117.10x = 1,146,175.65 × 409,823.10
  4. Step 4: Simplify right side
    764,117.10x = 469,729,258,027.52
  5. Step 5: Solve for x
    x = 469,729,258,027.52/764,117.10
  6. Step 6: Final answer
    x = 614,734.65

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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.