Home / 1,245,688.41-1,719,049.94-672,728.53

Finding the Fourth Proportional to 1,245,688.41, 1,719,049.94 and 672,728.53

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Solution

The fourth proportional to 1,245,688.41, 1,719,049.94 and 672,728.53 is: 928,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,688.41 : 1,719,049.94 = 672,728.53 : x
  2. Step 2: Convert to fraction form
    1,245,688.41/1,719,049.94 = 672,728.53/x
  3. Step 3: Cross multiply
    1,245,688.41x = 1,719,049.94 × 672,728.53
  4. Step 4: Simplify right side
    1,245,688.41x = 1,156,453,930,537.54
  5. Step 5: Solve for x
    x = 1,156,453,930,537.54/1,245,688.41
  6. Step 6: Final answer
    x = 928,365.33

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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.