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Finding the Fourth Proportional to 681,563.44, 940,563.84 and 375,650.92

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Solution

The fourth proportional to 681,563.44, 940,563.84 and 375,650.92 is: 518,401.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,563.44 : 940,563.84 = 375,650.92 : x
  2. Step 2: Convert to fraction form
    681,563.44/940,563.84 = 375,650.92/x
  3. Step 3: Cross multiply
    681,563.44x = 940,563.84 × 375,650.92
  4. Step 4: Simplify right side
    681,563.44x = 353,323,671,814.73
  5. Step 5: Solve for x
    x = 353,323,671,814.73/681,563.44
  6. Step 6: Final answer
    x = 518,401.74

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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.