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Finding the Fourth Proportional to 519,149.70, 778,724.55 and 182,570.40

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Solution

The fourth proportional to 519,149.70, 778,724.55 and 182,570.40 is: 273,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,149.70 : 778,724.55 = 182,570.40 : x
  2. Step 2: Convert to fraction form
    519,149.70/778,724.55 = 182,570.40/x
  3. Step 3: Cross multiply
    519,149.70x = 778,724.55 × 182,570.40
  4. Step 4: Simplify right side
    519,149.70x = 142,172,052,583.32
  5. Step 5: Solve for x
    x = 142,172,052,583.32/519,149.70
  6. Step 6: Final answer
    x = 273,855.60

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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.