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Finding the Fourth Proportional to 222,908.80, 334,363.20 and 210,661.60

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Solution

The fourth proportional to 222,908.80, 334,363.20 and 210,661.60 is: 315,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,908.80 : 334,363.20 = 210,661.60 : x
  2. Step 2: Convert to fraction form
    222,908.80/334,363.20 = 210,661.60/x
  3. Step 3: Cross multiply
    222,908.80x = 334,363.20 × 210,661.60
  4. Step 4: Simplify right side
    222,908.80x = 70,437,486,693.12
  5. Step 5: Solve for x
    x = 70,437,486,693.12/222,908.80
  6. Step 6: Final answer
    x = 315,992.40

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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.