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Finding the Fourth Proportional to 625,784.54, 863,529.27 and 353,839.10

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Solution

The fourth proportional to 625,784.54, 863,529.27 and 353,839.10 is: 488,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,784.54 : 863,529.27 = 353,839.10 : x
  2. Step 2: Convert to fraction form
    625,784.54/863,529.27 = 353,839.10/x
  3. Step 3: Cross multiply
    625,784.54x = 863,529.27 × 353,839.10
  4. Step 4: Simplify right side
    625,784.54x = 305,550,419,720.46
  5. Step 5: Solve for x
    x = 305,550,419,720.46/625,784.54
  6. Step 6: Final answer
    x = 488,267.77

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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.