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Finding the Fourth Proportional to 220,099.76, 330,338.16 and 218,443.04

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Solution

The fourth proportional to 220,099.76, 330,338.16 and 218,443.04 is: 327,851.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,099.76 : 330,338.16 = 218,443.04 : x
  2. Step 2: Convert to fraction form
    220,099.76/330,338.16 = 218,443.04/x
  3. Step 3: Cross multiply
    220,099.76x = 330,338.16 × 218,443.04
  4. Step 4: Simplify right side
    220,099.76x = 72,160,071,898.41
  5. Step 5: Solve for x
    x = 72,160,071,898.41/220,099.76
  6. Step 6: Final answer
    x = 327,851.66

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1.5x scale

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.