Home / 839,620.97-1,259,836.40-412,925.32

Finding the Fourth Proportional to 839,620.97, 1,259,836.40 and 412,925.32

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Solution

The fourth proportional to 839,620.97, 1,259,836.40 and 412,925.32 is: 619,587.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,620.97 : 1,259,836.40 = 412,925.32 : x
  2. Step 2: Convert to fraction form
    839,620.97/1,259,836.40 = 412,925.32/x
  3. Step 3: Cross multiply
    839,620.97x = 1,259,836.40 × 412,925.32
  4. Step 4: Simplify right side
    839,620.97x = 520,218,348,617.65
  5. Step 5: Solve for x
    x = 520,218,348,617.65/839,620.97
  6. Step 6: Final answer
    x = 619,587.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.