Home / 1,040,304.20-1,560,845.10-409,657.64

Finding the Fourth Proportional to 1,040,304.20, 1,560,845.10 and 409,657.64

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Solution

The fourth proportional to 1,040,304.20, 1,560,845.10 and 409,657.64 is: 614,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,304.20 : 1,560,845.10 = 409,657.64 : x
  2. Step 2: Convert to fraction form
    1,040,304.20/1,560,845.10 = 409,657.64/x
  3. Step 3: Cross multiply
    1,040,304.20x = 1,560,845.10 × 409,657.64
  4. Step 4: Simplify right side
    1,040,304.20x = 639,412,120,071.56
  5. Step 5: Solve for x
    x = 639,412,120,071.56/1,040,304.20
  6. Step 6: Final answer
    x = 614,639.56

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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.