Home / 681,977.84-940,944.80-387,623.44

Finding the Fourth Proportional to 681,977.84, 940,944.80 and 387,623.44

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Solution

The fourth proportional to 681,977.84, 940,944.80 and 387,623.44 is: 534,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,977.84 : 940,944.80 = 387,623.44 : x
  2. Step 2: Convert to fraction form
    681,977.84/940,944.80 = 387,623.44/x
  3. Step 3: Cross multiply
    681,977.84x = 940,944.80 × 387,623.44
  4. Step 4: Simplify right side
    681,977.84x = 364,732,260,226.11
  5. Step 5: Solve for x
    x = 364,732,260,226.11/681,977.84
  6. Step 6: Final answer
    x = 534,815.41

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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.