Home / 639,249.39-958,875.90-165,938.85

Finding the Fourth Proportional to 639,249.39, 958,875.90 and 165,938.85

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Solution

The fourth proportional to 639,249.39, 958,875.90 and 165,938.85 is: 248,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,249.39 : 958,875.90 = 165,938.85 : x
  2. Step 2: Convert to fraction form
    639,249.39/958,875.90 = 165,938.85/x
  3. Step 3: Cross multiply
    639,249.39x = 958,875.90 × 165,938.85
  4. Step 4: Simplify right side
    639,249.39x = 159,114,764,138.72
  5. Step 5: Solve for x
    x = 159,114,764,138.72/639,249.39
  6. Step 6: Final answer
    x = 248,908.75

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Double scale
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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.