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Finding the Fourth Proportional to 551,976.20, 827,964.30 and 363,019.40

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Solution

The fourth proportional to 551,976.20, 827,964.30 and 363,019.40 is: 544,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,976.20 : 827,964.30 = 363,019.40 : x
  2. Step 2: Convert to fraction form
    551,976.20/827,964.30 = 363,019.40/x
  3. Step 3: Cross multiply
    551,976.20x = 827,964.30 × 363,019.40
  4. Step 4: Simplify right side
    551,976.20x = 300,567,103,407.42
  5. Step 5: Solve for x
    x = 300,567,103,407.42/551,976.20
  6. Step 6: Final answer
    x = 544,529.10

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Double scale
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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.