Home / 969,658.40-1,338,168-539,911.28

Finding the Fourth Proportional to 969,658.40, 1,338,168 and 539,911.28

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Solution

The fourth proportional to 969,658.40, 1,338,168 and 539,911.28 is: 745,099.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,658.40 : 1,338,168 = 539,911.28 : x
  2. Step 2: Convert to fraction form
    969,658.40/1,338,168 = 539,911.28/x
  3. Step 3: Cross multiply
    969,658.40x = 1,338,168 × 539,911.28
  4. Step 4: Simplify right side
    969,658.40x = 722,491,997,735.04
  5. Step 5: Solve for x
    x = 722,491,997,735.04/969,658.40
  6. Step 6: Final answer
    x = 745,099.51

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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.