Home / 1,208,116.83-1,667,205.51-664,286.82

Finding the Fourth Proportional to 1,208,116.83, 1,667,205.51 and 664,286.82

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Solution

The fourth proportional to 1,208,116.83, 1,667,205.51 and 664,286.82 is: 916,718.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,116.83 : 1,667,205.51 = 664,286.82 : x
  2. Step 2: Convert to fraction form
    1,208,116.83/1,667,205.51 = 664,286.82/x
  3. Step 3: Cross multiply
    1,208,116.83x = 1,667,205.51 × 664,286.82
  4. Step 4: Simplify right side
    1,208,116.83x = 1,107,502,646,524.38
  5. Step 5: Solve for x
    x = 1,107,502,646,524.38/1,208,116.83
  6. Step 6: Final answer
    x = 916,718.17

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Double scale
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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.