Home / 516,555.11-774,831.45-137,475.72

Finding the Fourth Proportional to 516,555.11, 774,831.45 and 137,475.72

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Solution

The fourth proportional to 516,555.11, 774,831.45 and 137,475.72 is: 206,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,555.11 : 774,831.45 = 137,475.72 : x
  2. Step 2: Convert to fraction form
    516,555.11/774,831.45 = 137,475.72/x
  3. Step 3: Cross multiply
    516,555.11x = 774,831.45 × 137,475.72
  4. Step 4: Simplify right side
    516,555.11x = 106,520,511,467.39
  5. Step 5: Solve for x
    x = 106,520,511,467.39/516,555.11
  6. Step 6: Final answer
    x = 206,213.26

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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.