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Finding the Fourth Proportional to 681,797.81, 940,887.50 and 375,885.38

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Solution

The fourth proportional to 681,797.81, 940,887.50 and 375,885.38 is: 518,725.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,797.81 : 940,887.50 = 375,885.38 : x
  2. Step 2: Convert to fraction form
    681,797.81/940,887.50 = 375,885.38/x
  3. Step 3: Cross multiply
    681,797.81x = 940,887.50 × 375,885.38
  4. Step 4: Simplify right side
    681,797.81x = 353,665,848,890.89
  5. Step 5: Solve for x
    x = 353,665,848,890.89/681,797.81
  6. Step 6: Final answer
    x = 518,725.41

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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.