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Finding the Fourth Proportional to 609,758.40, 914,637.60 and 189,076.80

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Solution

The fourth proportional to 609,758.40, 914,637.60 and 189,076.80 is: 283,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,758.40 : 914,637.60 = 189,076.80 : x
  2. Step 2: Convert to fraction form
    609,758.40/914,637.60 = 189,076.80/x
  3. Step 3: Cross multiply
    609,758.40x = 914,637.60 × 189,076.80
  4. Step 4: Simplify right side
    609,758.40x = 172,936,750,567.68
  5. Step 5: Solve for x
    x = 172,936,750,567.68/609,758.40
  6. Step 6: Final answer
    x = 283,615.20

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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.