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Finding the Fourth Proportional to 674,453.67, 930,734.79 and 368,523.36

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Solution

The fourth proportional to 674,453.67, 930,734.79 and 368,523.36 is: 508,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,453.67 : 930,734.79 = 368,523.36 : x
  2. Step 2: Convert to fraction form
    674,453.67/930,734.79 = 368,523.36/x
  3. Step 3: Cross multiply
    674,453.67x = 930,734.79 × 368,523.36
  4. Step 4: Simplify right side
    674,453.67x = 342,997,512,079.69
  5. Step 5: Solve for x
    x = 342,997,512,079.69/674,453.67
  6. Step 6: Final answer
    x = 508,556.08

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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.