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Finding the Fourth Proportional to 616,847.14, 925,146.78 and 217,504.18

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Solution

The fourth proportional to 616,847.14, 925,146.78 and 217,504.18 is: 326,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,847.14 : 925,146.78 = 217,504.18 : x
  2. Step 2: Convert to fraction form
    616,847.14/925,146.78 = 217,504.18/x
  3. Step 3: Cross multiply
    616,847.14x = 925,146.78 × 217,504.18
  4. Step 4: Simplify right side
    616,847.14x = 201,223,291,763.54
  5. Step 5: Solve for x
    x = 201,223,291,763.54/616,847.14
  6. Step 6: Final answer
    x = 326,212.57

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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.