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Finding the Fourth Proportional to 322,658.69, 445,281.70 and 177,477.98

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Solution

The fourth proportional to 322,658.69, 445,281.70 and 177,477.98 is: 244,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,658.69 : 445,281.70 = 177,477.98 : x
  2. Step 2: Convert to fraction form
    322,658.69/445,281.70 = 177,477.98/x
  3. Step 3: Cross multiply
    322,658.69x = 445,281.70 × 177,477.98
  4. Step 4: Simplify right side
    322,658.69x = 79,027,696,646.97
  5. Step 5: Solve for x
    x = 79,027,696,646.97/322,658.69
  6. Step 6: Final answer
    x = 244,926.60

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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.