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Finding the Fourth Proportional to 343,944.51, 516,604.36 and 207,440.51

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Solution

The fourth proportional to 343,944.51, 516,604.36 and 207,440.51 is: 311,575.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,944.51 : 516,604.36 = 207,440.51 : x
  2. Step 2: Convert to fraction form
    343,944.51/516,604.36 = 207,440.51/x
  3. Step 3: Cross multiply
    343,944.51x = 516,604.36 × 207,440.51
  4. Step 4: Simplify right side
    343,944.51x = 107,164,668,286.40
  5. Step 5: Solve for x
    x = 107,164,668,286.40/343,944.51
  6. Step 6: Final answer
    x = 311,575.46

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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.