Home / 1,149,507.45-1,586,369.21-640,209.83

Finding the Fourth Proportional to 1,149,507.45, 1,586,369.21 and 640,209.83

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Solution

The fourth proportional to 1,149,507.45, 1,586,369.21 and 640,209.83 is: 883,516.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,507.45 : 1,586,369.21 = 640,209.83 : x
  2. Step 2: Convert to fraction form
    1,149,507.45/1,586,369.21 = 640,209.83/x
  3. Step 3: Cross multiply
    1,149,507.45x = 1,586,369.21 × 640,209.83
  4. Step 4: Simplify right side
    1,149,507.45x = 1,015,609,151,118.44
  5. Step 5: Solve for x
    x = 1,015,609,151,118.44/1,149,507.45
  6. Step 6: Final answer
    x = 883,516.81

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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.