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Finding the Fourth Proportional to 625,736.09, 863,534.01 and 353,798.14

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Solution

The fourth proportional to 625,736.09, 863,534.01 and 353,798.14 is: 488,251.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,736.09 : 863,534.01 = 353,798.14 : x
  2. Step 2: Convert to fraction form
    625,736.09/863,534.01 = 353,798.14/x
  3. Step 3: Cross multiply
    625,736.09x = 863,534.01 × 353,798.14
  4. Step 4: Simplify right side
    625,736.09x = 305,516,726,564.74
  5. Step 5: Solve for x
    x = 305,516,726,564.74/625,736.09
  6. Step 6: Final answer
    x = 488,251.73

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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.