Home / 515,091.40-772,637.10-494,096.20

Finding the Fourth Proportional to 515,091.40, 772,637.10 and 494,096.20

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Solution

The fourth proportional to 515,091.40, 772,637.10 and 494,096.20 is: 741,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,091.40 : 772,637.10 = 494,096.20 : x
  2. Step 2: Convert to fraction form
    515,091.40/772,637.10 = 494,096.20/x
  3. Step 3: Cross multiply
    515,091.40x = 772,637.10 × 494,096.20
  4. Step 4: Simplify right side
    515,091.40x = 381,757,055,089.02
  5. Step 5: Solve for x
    x = 381,757,055,089.02/515,091.40
  6. Step 6: Final answer
    x = 741,144.30

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Double scale
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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.