Home / 1,386,515.51-2,079,745.57-628,215.65

Finding the Fourth Proportional to 1,386,515.51, 2,079,745.57 and 628,215.65

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Solution

The fourth proportional to 1,386,515.51, 2,079,745.57 and 628,215.65 is: 942,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,515.51 : 2,079,745.57 = 628,215.65 : x
  2. Step 2: Convert to fraction form
    1,386,515.51/2,079,745.57 = 628,215.65/x
  3. Step 3: Cross multiply
    1,386,515.51x = 2,079,745.57 × 628,215.65
  4. Step 4: Simplify right side
    1,386,515.51x = 1,306,528,713,277.76
  5. Step 5: Solve for x
    x = 1,306,528,713,277.76/1,386,515.51
  6. Step 6: Final answer
    x = 942,310.93

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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.