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Finding the Fourth Proportional to 518,171.86, 777,257.79 and 202,407.33

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Solution

The fourth proportional to 518,171.86, 777,257.79 and 202,407.33 is: 303,611.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,171.86 : 777,257.79 = 202,407.33 : x
  2. Step 2: Convert to fraction form
    518,171.86/777,257.79 = 202,407.33/x
  3. Step 3: Cross multiply
    518,171.86x = 777,257.79 × 202,407.33
  4. Step 4: Simplify right side
    518,171.86x = 157,322,676,151.29
  5. Step 5: Solve for x
    x = 157,322,676,151.29/518,171.86
  6. Step 6: Final answer
    x = 303,611.00

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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.