Home / 1,040,343.60-1,560,126.60-409,126.80

Finding the Fourth Proportional to 1,040,343.60, 1,560,126.60 and 409,126.80

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Solution

The fourth proportional to 1,040,343.60, 1,560,126.60 and 409,126.80 is: 613,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,343.60 : 1,560,126.60 = 409,126.80 : x
  2. Step 2: Convert to fraction form
    1,040,343.60/1,560,126.60 = 409,126.80/x
  3. Step 3: Cross multiply
    1,040,343.60x = 1,560,126.60 × 409,126.80
  4. Step 4: Simplify right side
    1,040,343.60x = 638,289,603,452.88
  5. Step 5: Solve for x
    x = 638,289,603,452.88/1,040,343.60
  6. Step 6: Final answer
    x = 613,537.30

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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.