Home / 691,739.01-954,437.31-419,800.86

Finding the Fourth Proportional to 691,739.01, 954,437.31 and 419,800.86

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Solution

The fourth proportional to 691,739.01, 954,437.31 and 419,800.86 is: 579,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,739.01 : 954,437.31 = 419,800.86 : x
  2. Step 2: Convert to fraction form
    691,739.01/954,437.31 = 419,800.86/x
  3. Step 3: Cross multiply
    691,739.01x = 954,437.31 × 419,800.86
  4. Step 4: Simplify right side
    691,739.01x = 400,673,603,554.09
  5. Step 5: Solve for x
    x = 400,673,603,554.09/691,739.01
  6. Step 6: Final answer
    x = 579,226.55

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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.