Home / 1,189,080.88-1,783,616.42-430,744.78

Finding the Fourth Proportional to 1,189,080.88, 1,783,616.42 and 430,744.78

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Solution

The fourth proportional to 1,189,080.88, 1,783,616.42 and 430,744.78 is: 646,115.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,080.88 : 1,783,616.42 = 430,744.78 : x
  2. Step 2: Convert to fraction form
    1,189,080.88/1,783,616.42 = 430,744.78/x
  3. Step 3: Cross multiply
    1,189,080.88x = 1,783,616.42 × 430,744.78
  4. Step 4: Simplify right side
    1,189,080.88x = 768,283,462,437.29
  5. Step 5: Solve for x
    x = 768,283,462,437.29/1,189,080.88
  6. Step 6: Final answer
    x = 646,115.39

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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.