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Finding the Fourth Proportional to 322,808.01, 445,478.45 and 177,615.69

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Solution

The fourth proportional to 322,808.01, 445,478.45 and 177,615.69 is: 245,111.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,808.01 : 445,478.45 = 177,615.69 : x
  2. Step 2: Convert to fraction form
    322,808.01/445,478.45 = 177,615.69/x
  3. Step 3: Cross multiply
    322,808.01x = 445,478.45 × 177,615.69
  4. Step 4: Simplify right side
    322,808.01x = 79,123,962,276.88
  5. Step 5: Solve for x
    x = 79,123,962,276.88/322,808.01
  6. Step 6: Final answer
    x = 245,111.52

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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.