Home / 939,391.11-1,296,221.95-525,906.45

Finding the Fourth Proportional to 939,391.11, 1,296,221.95 and 525,906.45

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Solution

The fourth proportional to 939,391.11, 1,296,221.95 and 525,906.45 is: 725,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,391.11 : 1,296,221.95 = 525,906.45 : x
  2. Step 2: Convert to fraction form
    939,391.11/1,296,221.95 = 525,906.45/x
  3. Step 3: Cross multiply
    939,391.11x = 1,296,221.95 × 525,906.45
  4. Step 4: Simplify right side
    939,391.11x = 681,691,481,887.87
  5. Step 5: Solve for x
    x = 681,691,481,887.87/939,391.11
  6. Step 6: Final answer
    x = 725,673.76

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Double scale
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1.5x scale

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.