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Finding the Fourth Proportional to 281,221.44, 388,266.67 and 250,954.72

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Solution

The fourth proportional to 281,221.44, 388,266.67 and 250,954.72 is: 346,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,221.44 : 388,266.67 = 250,954.72 : x
  2. Step 2: Convert to fraction form
    281,221.44/388,266.67 = 250,954.72/x
  3. Step 3: Cross multiply
    281,221.44x = 388,266.67 × 250,954.72
  4. Step 4: Simplify right side
    281,221.44x = 97,437,353,570.59
  5. Step 5: Solve for x
    x = 97,437,353,570.59/281,221.44
  6. Step 6: Final answer
    x = 346,479.11

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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.