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Finding the Fourth Proportional to 220,261.84, 328,061.46 and 219,187.84

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Solution

The fourth proportional to 220,261.84, 328,061.46 and 219,187.84 is: 326,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,261.84 : 328,061.46 = 219,187.84 : x
  2. Step 2: Convert to fraction form
    220,261.84/328,061.46 = 219,187.84/x
  3. Step 3: Cross multiply
    220,261.84x = 328,061.46 × 219,187.84
  4. Step 4: Simplify right side
    220,261.84x = 71,907,082,804.65
  5. Step 5: Solve for x
    x = 71,907,082,804.65/220,261.84
  6. Step 6: Final answer
    x = 326,461.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.