Home / 1,093,353.40-1,638,863.70-419,174.20

Finding the Fourth Proportional to 1,093,353.40, 1,638,863.70 and 419,174.20

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Solution

The fourth proportional to 1,093,353.40, 1,638,863.70 and 419,174.20 is: 628,314.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,353.40 : 1,638,863.70 = 419,174.20 : x
  2. Step 2: Convert to fraction form
    1,093,353.40/1,638,863.70 = 419,174.20/x
  3. Step 3: Cross multiply
    1,093,353.40x = 1,638,863.70 × 419,174.20
  4. Step 4: Simplify right side
    1,093,353.40x = 686,969,380,356.54
  5. Step 5: Solve for x
    x = 686,969,380,356.54/1,093,353.40
  6. Step 6: Final answer
    x = 628,314.12

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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.