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Finding the Fourth Proportional to 458,662.80, 687,994.20 and 222,466.80

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Solution

The fourth proportional to 458,662.80, 687,994.20 and 222,466.80 is: 333,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,662.80 : 687,994.20 = 222,466.80 : x
  2. Step 2: Convert to fraction form
    458,662.80/687,994.20 = 222,466.80/x
  3. Step 3: Cross multiply
    458,662.80x = 687,994.20 × 222,466.80
  4. Step 4: Simplify right side
    458,662.80x = 153,055,868,092.56
  5. Step 5: Solve for x
    x = 153,055,868,092.56/458,662.80
  6. Step 6: Final answer
    x = 333,700.20

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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.