Home / 639,056.59-958,716.11-259,976.36

Finding the Fourth Proportional to 639,056.59, 958,716.11 and 259,976.36

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Solution

The fourth proportional to 639,056.59, 958,716.11 and 259,976.36 is: 390,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,056.59 : 958,716.11 = 259,976.36 : x
  2. Step 2: Convert to fraction form
    639,056.59/958,716.11 = 259,976.36/x
  3. Step 3: Cross multiply
    639,056.59x = 958,716.11 × 259,976.36
  4. Step 4: Simplify right side
    639,056.59x = 249,243,524,551.16
  5. Step 5: Solve for x
    x = 249,243,524,551.16/639,056.59
  6. Step 6: Final answer
    x = 390,017.92

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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.