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Finding the Fourth Proportional to 511,762.38, 767,643.57 and 179,338.38

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Solution

The fourth proportional to 511,762.38, 767,643.57 and 179,338.38 is: 269,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,762.38 : 767,643.57 = 179,338.38 : x
  2. Step 2: Convert to fraction form
    511,762.38/767,643.57 = 179,338.38/x
  3. Step 3: Cross multiply
    511,762.38x = 767,643.57 × 179,338.38
  4. Step 4: Simplify right side
    511,762.38x = 137,667,949,526.31
  5. Step 5: Solve for x
    x = 137,667,949,526.31/511,762.38
  6. Step 6: Final answer
    x = 269,007.56

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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.