Home / 639,054.59-958,713.11-259,974.36

Finding the Fourth Proportional to 639,054.59, 958,713.11 and 259,974.36

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Solution

The fourth proportional to 639,054.59, 958,713.11 and 259,974.36 is: 390,014.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,054.59 : 958,713.11 = 259,974.36 : x
  2. Step 2: Convert to fraction form
    639,054.59/958,713.11 = 259,974.36/x
  3. Step 3: Cross multiply
    639,054.59x = 958,713.11 × 259,974.36
  4. Step 4: Simplify right side
    639,054.59x = 249,240,825,895.99
  5. Step 5: Solve for x
    x = 249,240,825,895.99/639,054.59
  6. Step 6: Final answer
    x = 390,014.92

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1.5x scale

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.