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Finding the Fourth Proportional to 447,019.98, 670,529.91 and 131,476.92

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Solution

The fourth proportional to 447,019.98, 670,529.91 and 131,476.92 is: 197,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,019.98 : 670,529.91 = 131,476.92 : x
  2. Step 2: Convert to fraction form
    447,019.98/670,529.91 = 131,476.92/x
  3. Step 3: Cross multiply
    447,019.98x = 670,529.91 × 131,476.92
  4. Step 4: Simplify right side
    447,019.98x = 88,159,207,334.68
  5. Step 5: Solve for x
    x = 88,159,207,334.68/447,019.98
  6. Step 6: Final answer
    x = 197,215.36

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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.