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Finding the Fourth Proportional to 354,987.20, 532,480.80 and 222,017.60

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Solution

The fourth proportional to 354,987.20, 532,480.80 and 222,017.60 is: 333,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,987.20 : 532,480.80 = 222,017.60 : x
  2. Step 2: Convert to fraction form
    354,987.20/532,480.80 = 222,017.60/x
  3. Step 3: Cross multiply
    354,987.20x = 532,480.80 × 222,017.60
  4. Step 4: Simplify right side
    354,987.20x = 118,220,109,262.08
  5. Step 5: Solve for x
    x = 118,220,109,262.08/354,987.20
  6. Step 6: Final answer
    x = 333,026.40

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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.