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Finding the Fourth Proportional to 681,617.06, 940,627.33 and 371,519.29

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Solution

The fourth proportional to 681,617.06, 940,627.33 and 371,519.29 is: 512,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,617.06 : 940,627.33 = 371,519.29 : x
  2. Step 2: Convert to fraction form
    681,617.06/940,627.33 = 371,519.29/x
  3. Step 3: Cross multiply
    681,617.06x = 940,627.33 × 371,519.29
  4. Step 4: Simplify right side
    681,617.06x = 349,461,197,796.20
  5. Step 5: Solve for x
    x = 349,461,197,796.20/681,617.06
  6. Step 6: Final answer
    x = 512,694.32

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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.