Home / 621,150.60-931,725.90-200,440.20

Finding the Fourth Proportional to 621,150.60, 931,725.90 and 200,440.20

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Solution

The fourth proportional to 621,150.60, 931,725.90 and 200,440.20 is: 300,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,150.60 : 931,725.90 = 200,440.20 : x
  2. Step 2: Convert to fraction form
    621,150.60/931,725.90 = 200,440.20/x
  3. Step 3: Cross multiply
    621,150.60x = 931,725.90 × 200,440.20
  4. Step 4: Simplify right side
    621,150.60x = 186,755,325,741.18
  5. Step 5: Solve for x
    x = 186,755,325,741.18/621,150.60
  6. Step 6: Final answer
    x = 300,660.30

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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.