Home / 1,238,806.10-1,709,785.82-808,338.89

Finding the Fourth Proportional to 1,238,806.10, 1,709,785.82 and 808,338.89

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Solution

The fourth proportional to 1,238,806.10, 1,709,785.82 and 808,338.89 is: 1,115,659.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,806.10 : 1,709,785.82 = 808,338.89 : x
  2. Step 2: Convert to fraction form
    1,238,806.10/1,709,785.82 = 808,338.89/x
  3. Step 3: Cross multiply
    1,238,806.10x = 1,709,785.82 × 808,338.89
  4. Step 4: Simplify right side
    1,238,806.10x = 1,382,086,373,624.95
  5. Step 5: Solve for x
    x = 1,382,086,373,624.95/1,238,806.10
  6. Step 6: Final answer
    x = 1,115,659.97

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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.