Home / 511,815.40-767,723.10-227,505.40

Finding the Fourth Proportional to 511,815.40, 767,723.10 and 227,505.40

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Solution

The fourth proportional to 511,815.40, 767,723.10 and 227,505.40 is: 341,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,815.40 : 767,723.10 = 227,505.40 : x
  2. Step 2: Convert to fraction form
    511,815.40/767,723.10 = 227,505.40/x
  3. Step 3: Cross multiply
    511,815.40x = 767,723.10 × 227,505.40
  4. Step 4: Simplify right side
    511,815.40x = 174,661,150,954.74
  5. Step 5: Solve for x
    x = 174,661,150,954.74/511,815.40
  6. Step 6: Final answer
    x = 341,258.10

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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.