Home / 621,939.20-932,908.80-201,257.60

Finding the Fourth Proportional to 621,939.20, 932,908.80 and 201,257.60

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Solution

The fourth proportional to 621,939.20, 932,908.80 and 201,257.60 is: 301,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,939.20 : 932,908.80 = 201,257.60 : x
  2. Step 2: Convert to fraction form
    621,939.20/932,908.80 = 201,257.60/x
  3. Step 3: Cross multiply
    621,939.20x = 932,908.80 × 201,257.60
  4. Step 4: Simplify right side
    621,939.20x = 187,754,986,106.88
  5. Step 5: Solve for x
    x = 187,754,986,106.88/621,939.20
  6. Step 6: Final answer
    x = 301,886.40

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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.