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Finding the Fourth Proportional to 638,017.62, 957,174.51 and 217,297.14

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Solution

The fourth proportional to 638,017.62, 957,174.51 and 217,297.14 is: 325,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,017.62 : 957,174.51 = 217,297.14 : x
  2. Step 2: Convert to fraction form
    638,017.62/957,174.51 = 217,297.14/x
  3. Step 3: Cross multiply
    638,017.62x = 957,174.51 × 217,297.14
  4. Step 4: Simplify right side
    638,017.62x = 207,991,283,503.90
  5. Step 5: Solve for x
    x = 207,991,283,503.90/638,017.62
  6. Step 6: Final answer
    x = 325,996.14

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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.