Home / 639,243.88-958,867.64-165,933.34

Finding the Fourth Proportional to 639,243.88, 958,867.64 and 165,933.34

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Solution

The fourth proportional to 639,243.88, 958,867.64 and 165,933.34 is: 248,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,243.88 : 958,867.64 = 165,933.34 : x
  2. Step 2: Convert to fraction form
    639,243.88/958,867.64 = 165,933.34/x
  3. Step 3: Cross multiply
    639,243.88x = 958,867.64 × 165,933.34
  4. Step 4: Simplify right side
    639,243.88x = 159,108,110,123.12
  5. Step 5: Solve for x
    x = 159,108,110,123.12/639,243.88
  6. Step 6: Final answer
    x = 248,900.48

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Double scale
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Similar ratio
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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.