Home / 1,216,778.88-1,679,166-672,886.56

Finding the Fourth Proportional to 1,216,778.88, 1,679,166 and 672,886.56

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Solution

The fourth proportional to 1,216,778.88, 1,679,166 and 672,886.56 is: 928,589.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,778.88 : 1,679,166 = 672,886.56 : x
  2. Step 2: Convert to fraction form
    1,216,778.88/1,679,166 = 672,886.56/x
  3. Step 3: Cross multiply
    1,216,778.88x = 1,679,166 × 672,886.56
  4. Step 4: Simplify right side
    1,216,778.88x = 1,129,888,233,408.96
  5. Step 5: Solve for x
    x = 1,129,888,233,408.96/1,216,778.88
  6. Step 6: Final answer
    x = 928,589.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.