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Finding the Fourth Proportional to 317,512.80, 476,019.50 and 217,369.44

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Solution

The fourth proportional to 317,512.80, 476,019.50 and 217,369.44 is: 325,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,512.80 : 476,019.50 = 217,369.44 : x
  2. Step 2: Convert to fraction form
    317,512.80/476,019.50 = 217,369.44/x
  3. Step 3: Cross multiply
    317,512.80x = 476,019.50 × 217,369.44
  4. Step 4: Simplify right side
    317,512.80x = 103,472,091,057.23
  5. Step 5: Solve for x
    x = 103,472,091,057.23/317,512.80
  6. Step 6: Final answer
    x = 325,883.21

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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.