Home / 939,812.12-1,296,926.75-531,991.30

Finding the Fourth Proportional to 939,812.12, 1,296,926.75 and 531,991.30

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Solution

The fourth proportional to 939,812.12, 1,296,926.75 and 531,991.30 is: 734,140.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,812.12 : 1,296,926.75 = 531,991.30 : x
  2. Step 2: Convert to fraction form
    939,812.12/1,296,926.75 = 531,991.30/x
  3. Step 3: Cross multiply
    939,812.12x = 1,296,926.75 × 531,991.30
  4. Step 4: Simplify right side
    939,812.12x = 689,953,738,592.69
  5. Step 5: Solve for x
    x = 689,953,738,592.69/939,812.12
  6. Step 6: Final answer
    x = 734,140.07

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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.