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Finding the Fourth Proportional to 592,110.40, 889,087.20 and 343,278.40

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Solution

The fourth proportional to 592,110.40, 889,087.20 and 343,278.40 is: 515,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,110.40 : 889,087.20 = 343,278.40 : x
  2. Step 2: Convert to fraction form
    592,110.40/889,087.20 = 343,278.40/x
  3. Step 3: Cross multiply
    592,110.40x = 889,087.20 × 343,278.40
  4. Step 4: Simplify right side
    592,110.40x = 305,204,431,476.48
  5. Step 5: Solve for x
    x = 305,204,431,476.48/592,110.40
  6. Step 6: Final answer
    x = 515,451.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.