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Finding the Fourth Proportional to 681,713.54, 940,722.38 and 375,774.11

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Solution

The fourth proportional to 681,713.54, 940,722.38 and 375,774.11 is: 518,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,713.54 : 940,722.38 = 375,774.11 : x
  2. Step 2: Convert to fraction form
    681,713.54/940,722.38 = 375,774.11/x
  3. Step 3: Cross multiply
    681,713.54x = 940,722.38 × 375,774.11
  4. Step 4: Simplify right side
    681,713.54x = 353,499,110,397.97
  5. Step 5: Solve for x
    x = 353,499,110,397.97/681,713.54
  6. Step 6: Final answer
    x = 518,544.95

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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.