Home / 639,011.88-958,658.94-189,769.32

Finding the Fourth Proportional to 639,011.88, 958,658.94 and 189,769.32

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Solution

The fourth proportional to 639,011.88, 958,658.94 and 189,769.32 is: 284,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,011.88 : 958,658.94 = 189,769.32 : x
  2. Step 2: Convert to fraction form
    639,011.88/958,658.94 = 189,769.32/x
  3. Step 3: Cross multiply
    639,011.88x = 958,658.94 × 189,769.32
  4. Step 4: Simplify right side
    639,011.88x = 181,924,055,155.72
  5. Step 5: Solve for x
    x = 181,924,055,155.72/639,011.88
  6. Step 6: Final answer
    x = 284,695.89

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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.