Home / 513,145.20-769,717.80-158,127.60

Finding the Fourth Proportional to 513,145.20, 769,717.80 and 158,127.60

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Solution

The fourth proportional to 513,145.20, 769,717.80 and 158,127.60 is: 237,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,145.20 : 769,717.80 = 158,127.60 : x
  2. Step 2: Convert to fraction form
    513,145.20/769,717.80 = 158,127.60/x
  3. Step 3: Cross multiply
    513,145.20x = 769,717.80 × 158,127.60
  4. Step 4: Simplify right side
    513,145.20x = 121,713,628,391.28
  5. Step 5: Solve for x
    x = 121,713,628,391.28/513,145.20
  6. Step 6: Final answer
    x = 237,191.40

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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.