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Finding the Fourth Proportional to 519,485.88, 779,251.12 and 204,011.16

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Solution

The fourth proportional to 519,485.88, 779,251.12 and 204,011.16 is: 306,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,485.88 : 779,251.12 = 204,011.16 : x
  2. Step 2: Convert to fraction form
    519,485.88/779,251.12 = 204,011.16/x
  3. Step 3: Cross multiply
    519,485.88x = 779,251.12 × 204,011.16
  4. Step 4: Simplify right side
    519,485.88x = 158,975,924,922.50
  5. Step 5: Solve for x
    x = 158,975,924,922.50/519,485.88
  6. Step 6: Final answer
    x = 306,025.50

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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.