Home / 1,040,357.60-1,560,147.60-409,140.80

Finding the Fourth Proportional to 1,040,357.60, 1,560,147.60 and 409,140.80

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Solution

The fourth proportional to 1,040,357.60, 1,560,147.60 and 409,140.80 is: 613,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,357.60 : 1,560,147.60 = 409,140.80 : x
  2. Step 2: Convert to fraction form
    1,040,357.60/1,560,147.60 = 409,140.80/x
  3. Step 3: Cross multiply
    1,040,357.60x = 1,560,147.60 × 409,140.80
  4. Step 4: Simplify right side
    1,040,357.60x = 638,320,037,182.08
  5. Step 5: Solve for x
    x = 638,320,037,182.08/1,040,357.60
  6. Step 6: Final answer
    x = 613,558.30

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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.