Home / 927,000.20-1,390,653.90-394,776.20

Finding the Fourth Proportional to 927,000.20, 1,390,653.90 and 394,776.20

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Solution

The fourth proportional to 927,000.20, 1,390,653.90 and 394,776.20 is: 592,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,000.20 : 1,390,653.90 = 394,776.20 : x
  2. Step 2: Convert to fraction form
    927,000.20/1,390,653.90 = 394,776.20/x
  3. Step 3: Cross multiply
    927,000.20x = 1,390,653.90 × 394,776.20
  4. Step 4: Simplify right side
    927,000.20x = 548,997,062,157.18
  5. Step 5: Solve for x
    x = 548,997,062,157.18/927,000.20
  6. Step 6: Final answer
    x = 592,229.71

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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.