Home / 1,212,474-1,673,175.62-668,632.70

Finding the Fourth Proportional to 1,212,474, 1,673,175.62 and 668,632.70

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Solution

The fourth proportional to 1,212,474, 1,673,175.62 and 668,632.70 is: 922,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,474 : 1,673,175.62 = 668,632.70 : x
  2. Step 2: Convert to fraction form
    1,212,474/1,673,175.62 = 668,632.70/x
  3. Step 3: Cross multiply
    1,212,474x = 1,673,175.62 × 668,632.70
  4. Step 4: Simplify right side
    1,212,474x = 1,118,739,932,374.77
  5. Step 5: Solve for x
    x = 1,118,739,932,374.77/1,212,474
  6. Step 6: Final answer
    x = 922,691.89

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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.