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Finding the Fourth Proportional to 624,958.83, 862,496.19 and 353,076.57

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Solution

The fourth proportional to 624,958.83, 862,496.19 and 353,076.57 is: 487,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,958.83 : 862,496.19 = 353,076.57 : x
  2. Step 2: Convert to fraction form
    624,958.83/862,496.19 = 353,076.57/x
  3. Step 3: Cross multiply
    624,958.83x = 862,496.19 × 353,076.57
  4. Step 4: Simplify right side
    624,958.83x = 304,527,196,403.27
  5. Step 5: Solve for x
    x = 304,527,196,403.27/624,958.83
  6. Step 6: Final answer
    x = 487,275.61

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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.