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Finding the Fourth Proportional to 519,249.20, 778,873.80 and 294,522.80

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Solution

The fourth proportional to 519,249.20, 778,873.80 and 294,522.80 is: 441,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,249.20 : 778,873.80 = 294,522.80 : x
  2. Step 2: Convert to fraction form
    519,249.20/778,873.80 = 294,522.80/x
  3. Step 3: Cross multiply
    519,249.20x = 778,873.80 × 294,522.80
  4. Step 4: Simplify right side
    519,249.20x = 229,396,092,422.64
  5. Step 5: Solve for x
    x = 229,396,092,422.64/519,249.20
  6. Step 6: Final answer
    x = 441,784.20

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Double scale
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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.