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Finding the Fourth Proportional to 268,657.90, 402,403.65 and 222,001.90

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Solution

The fourth proportional to 268,657.90, 402,403.65 and 222,001.90 is: 332,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,657.90 : 402,403.65 = 222,001.90 : x
  2. Step 2: Convert to fraction form
    268,657.90/402,403.65 = 222,001.90/x
  3. Step 3: Cross multiply
    268,657.90x = 402,403.65 × 222,001.90
  4. Step 4: Simplify right side
    268,657.90x = 89,334,374,866.94
  5. Step 5: Solve for x
    x = 89,334,374,866.94/268,657.90
  6. Step 6: Final answer
    x = 332,520.93

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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.