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Finding the Fourth Proportional to 613,138.20, 925,466.64 and 613,138.20

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Solution

The fourth proportional to 613,138.20, 925,466.64 and 613,138.20 is: 925,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,138.20 : 925,466.64 = 613,138.20 : x
  2. Step 2: Convert to fraction form
    613,138.20/925,466.64 = 613,138.20/x
  3. Step 3: Cross multiply
    613,138.20x = 925,466.64 × 613,138.20
  4. Step 4: Simplify right side
    613,138.20x = 567,438,949,809.65
  5. Step 5: Solve for x
    x = 567,438,949,809.65/613,138.20
  6. Step 6: Final answer
    x = 925,466.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.