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Finding the Fourth Proportional to 228,641.20, 342,305.70 and 222,080.20

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Solution

The fourth proportional to 228,641.20, 342,305.70 and 222,080.20 is: 332,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,641.20 : 342,305.70 = 222,080.20 : x
  2. Step 2: Convert to fraction form
    228,641.20/342,305.70 = 222,080.20/x
  3. Step 3: Cross multiply
    228,641.20x = 342,305.70 × 222,080.20
  4. Step 4: Simplify right side
    228,641.20x = 76,019,318,317.14
  5. Step 5: Solve for x
    x = 76,019,318,317.14/228,641.20
  6. Step 6: Final answer
    x = 332,483.03

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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.