Home / 639,158.47-958,868.93-189,839.32

Finding the Fourth Proportional to 639,158.47, 958,868.93 and 189,839.32

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Solution

The fourth proportional to 639,158.47, 958,868.93 and 189,839.32 is: 284,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,158.47 : 958,868.93 = 189,839.32 : x
  2. Step 2: Convert to fraction form
    639,158.47/958,868.93 = 189,839.32/x
  3. Step 3: Cross multiply
    639,158.47x = 958,868.93 × 189,839.32
  4. Step 4: Simplify right side
    639,158.47x = 182,031,023,717.75
  5. Step 5: Solve for x
    x = 182,031,023,717.75/639,158.47
  6. Step 6: Final answer
    x = 284,797.95

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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.