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Finding the Fourth Proportional to 551,758.20, 827,637.30 and 285,600.30

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Solution

The fourth proportional to 551,758.20, 827,637.30 and 285,600.30 is: 428,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,758.20 : 827,637.30 = 285,600.30 : x
  2. Step 2: Convert to fraction form
    551,758.20/827,637.30 = 285,600.30/x
  3. Step 3: Cross multiply
    551,758.20x = 827,637.30 × 285,600.30
  4. Step 4: Simplify right side
    551,758.20x = 236,373,461,171.19
  5. Step 5: Solve for x
    x = 236,373,461,171.19/551,758.20
  6. Step 6: Final answer
    x = 428,400.45

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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.