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Finding the Fourth Proportional to 552,825.28, 763,003.20 and 346,189.60

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Solution

The fourth proportional to 552,825.28, 763,003.20 and 346,189.60 is: 477,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,825.28 : 763,003.20 = 346,189.60 : x
  2. Step 2: Convert to fraction form
    552,825.28/763,003.20 = 346,189.60/x
  3. Step 3: Cross multiply
    552,825.28x = 763,003.20 × 346,189.60
  4. Step 4: Simplify right side
    552,825.28x = 264,143,772,606.72
  5. Step 5: Solve for x
    x = 264,143,772,606.72/552,825.28
  6. Step 6: Final answer
    x = 477,806.97

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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.