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Finding the Fourth Proportional to 409,177.44, 613,910.88 and 143,011.44

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Solution

The fourth proportional to 409,177.44, 613,910.88 and 143,011.44 is: 214,567.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,177.44 : 613,910.88 = 143,011.44 : x
  2. Step 2: Convert to fraction form
    409,177.44/613,910.88 = 143,011.44/x
  3. Step 3: Cross multiply
    409,177.44x = 613,910.88 × 143,011.44
  4. Step 4: Simplify right side
    409,177.44x = 87,796,278,980.47
  5. Step 5: Solve for x
    x = 87,796,278,980.47/409,177.44
  6. Step 6: Final answer
    x = 214,567.74

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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.