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Finding the Fourth Proportional to 511,964.73, 767,859.60 and 137,900.25

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Solution

The fourth proportional to 511,964.73, 767,859.60 and 137,900.25 is: 206,826.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,964.73 : 767,859.60 = 137,900.25 : x
  2. Step 2: Convert to fraction form
    511,964.73/767,859.60 = 137,900.25/x
  3. Step 3: Cross multiply
    511,964.73x = 767,859.60 × 137,900.25
  4. Step 4: Simplify right side
    511,964.73x = 105,888,030,804.90
  5. Step 5: Solve for x
    x = 105,888,030,804.90/511,964.73
  6. Step 6: Final answer
    x = 206,826.81

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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.