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Finding the Fourth Proportional to 516,010.60, 774,015.90 and 136,930.60

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Solution

The fourth proportional to 516,010.60, 774,015.90 and 136,930.60 is: 205,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,010.60 : 774,015.90 = 136,930.60 : x
  2. Step 2: Convert to fraction form
    516,010.60/774,015.90 = 136,930.60/x
  3. Step 3: Cross multiply
    516,010.60x = 774,015.90 × 136,930.60
  4. Step 4: Simplify right side
    516,010.60x = 105,986,461,596.54
  5. Step 5: Solve for x
    x = 105,986,461,596.54/516,010.60
  6. Step 6: Final answer
    x = 205,395.90

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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.