Home / 939,808.45-1,296,876.63-531,993.09

Finding the Fourth Proportional to 939,808.45, 1,296,876.63 and 531,993.09

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Solution

The fourth proportional to 939,808.45, 1,296,876.63 and 531,993.09 is: 734,117.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,808.45 : 1,296,876.63 = 531,993.09 : x
  2. Step 2: Convert to fraction form
    939,808.45/1,296,876.63 = 531,993.09/x
  3. Step 3: Cross multiply
    939,808.45x = 1,296,876.63 × 531,993.09
  4. Step 4: Simplify right side
    939,808.45x = 689,929,405,742.49
  5. Step 5: Solve for x
    x = 689,929,405,742.49/939,808.45
  6. Step 6: Final answer
    x = 734,117.05

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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.