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Finding the Fourth Proportional to 322,666.70, 445,290.86 and 177,478.62

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Solution

The fourth proportional to 322,666.70, 445,290.86 and 177,478.62 is: 244,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,666.70 : 445,290.86 = 177,478.62 : x
  2. Step 2: Convert to fraction form
    322,666.70/445,290.86 = 177,478.62/x
  3. Step 3: Cross multiply
    322,666.70x = 445,290.86 × 177,478.62
  4. Step 4: Simplify right side
    322,666.70x = 79,029,607,331.41
  5. Step 5: Solve for x
    x = 79,029,607,331.41/322,666.70
  6. Step 6: Final answer
    x = 244,926.44

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1.5x scale

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.