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Finding the Fourth Proportional to 681,453.07, 940,411.43 and 375,540.42

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Solution

The fourth proportional to 681,453.07, 940,411.43 and 375,540.42 is: 518,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,453.07 : 940,411.43 = 375,540.42 : x
  2. Step 2: Convert to fraction form
    681,453.07/940,411.43 = 375,540.42/x
  3. Step 3: Cross multiply
    681,453.07x = 940,411.43 × 375,540.42
  4. Step 4: Simplify right side
    681,453.07x = 353,162,503,395.00
  5. Step 5: Solve for x
    x = 353,162,503,395.00/681,453.07
  6. Step 6: Final answer
    x = 518,249.19

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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.