Home / 939,813.12-1,296,928.13-531,992.30

Finding the Fourth Proportional to 939,813.12, 1,296,928.13 and 531,992.30

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Solution

The fourth proportional to 939,813.12, 1,296,928.13 and 531,992.30 is: 734,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,813.12 : 1,296,928.13 = 531,992.30 : x
  2. Step 2: Convert to fraction form
    939,813.12/1,296,928.13 = 531,992.30/x
  3. Step 3: Cross multiply
    939,813.12x = 1,296,928.13 × 531,992.30
  4. Step 4: Simplify right side
    939,813.12x = 689,955,769,668.80
  5. Step 5: Solve for x
    x = 689,955,769,668.80/939,813.12
  6. Step 6: Final answer
    x = 734,141.45

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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.