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Finding the Fourth Proportional to 322,952.41, 445,421.86 and 209,811.61

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Solution

The fourth proportional to 322,952.41, 445,421.86 and 209,811.61 is: 289,376.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,952.41 : 445,421.86 = 209,811.61 : x
  2. Step 2: Convert to fraction form
    322,952.41/445,421.86 = 209,811.61/x
  3. Step 3: Cross multiply
    322,952.41x = 445,421.86 × 209,811.61
  4. Step 4: Simplify right side
    322,952.41x = 93,454,677,575.79
  5. Step 5: Solve for x
    x = 93,454,677,575.79/322,952.41
  6. Step 6: Final answer
    x = 289,376.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.