Home / 1,235,883.40-1,853,825.10-394,520.20

Finding the Fourth Proportional to 1,235,883.40, 1,853,825.10 and 394,520.20

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Solution

The fourth proportional to 1,235,883.40, 1,853,825.10 and 394,520.20 is: 591,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,883.40 : 1,853,825.10 = 394,520.20 : x
  2. Step 2: Convert to fraction form
    1,235,883.40/1,853,825.10 = 394,520.20/x
  3. Step 3: Cross multiply
    1,235,883.40x = 1,853,825.10 × 394,520.20
  4. Step 4: Simplify right side
    1,235,883.40x = 731,371,449,217.02
  5. Step 5: Solve for x
    x = 731,371,449,217.02/1,235,883.40
  6. Step 6: Final answer
    x = 591,780.30

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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.