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Finding the Fourth Proportional to 519,740.25, 779,610.41 and 125,756.25

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Solution

The fourth proportional to 519,740.25, 779,610.41 and 125,756.25 is: 188,634.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,740.25 : 779,610.41 = 125,756.25 : x
  2. Step 2: Convert to fraction form
    519,740.25/779,610.41 = 125,756.25/x
  3. Step 3: Cross multiply
    519,740.25x = 779,610.41 × 125,756.25
  4. Step 4: Simplify right side
    519,740.25x = 98,040,880,993.78
  5. Step 5: Solve for x
    x = 98,040,880,993.78/519,740.25
  6. Step 6: Final answer
    x = 188,634.38

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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.