Home / 2,609,878.93-3,914,662.57-812,509.38

Finding the Fourth Proportional to 2,609,878.93, 3,914,662.57 and 812,509.38

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Solution

The fourth proportional to 2,609,878.93, 3,914,662.57 and 812,509.38 is: 1,218,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609,878.93 : 3,914,662.57 = 812,509.38 : x
  2. Step 2: Convert to fraction form
    2,609,878.93/3,914,662.57 = 812,509.38/x
  3. Step 3: Cross multiply
    2,609,878.93x = 3,914,662.57 × 812,509.38
  4. Step 4: Simplify right side
    2,609,878.93x = 3,180,700,055,628.63
  5. Step 5: Solve for x
    x = 3,180,700,055,628.63/2,609,878.93
  6. Step 6: Final answer
    x = 1,218,715.56

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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.