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Finding the Fourth Proportional to 372,346.46, 513,797.00 and 208,965.49

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Solution

The fourth proportional to 372,346.46, 513,797.00 and 208,965.49 is: 288,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,346.46 : 513,797.00 = 208,965.49 : x
  2. Step 2: Convert to fraction form
    372,346.46/513,797.00 = 208,965.49/x
  3. Step 3: Cross multiply
    372,346.46x = 513,797.00 × 208,965.49
  4. Step 4: Simplify right side
    372,346.46x = 107,365,839,536.21
  5. Step 5: Solve for x
    x = 107,365,839,536.21/372,346.46
  6. Step 6: Final answer
    x = 288,349.30

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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.