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Finding the Fourth Proportional to 508,639.08, 701,923.86 and 282,284.58

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Solution

The fourth proportional to 508,639.08, 701,923.86 and 282,284.58 is: 389,553.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,639.08 : 701,923.86 = 282,284.58 : x
  2. Step 2: Convert to fraction form
    508,639.08/701,923.86 = 282,284.58/x
  3. Step 3: Cross multiply
    508,639.08x = 701,923.86 × 282,284.58
  4. Step 4: Simplify right side
    508,639.08x = 198,142,282,012.08
  5. Step 5: Solve for x
    x = 198,142,282,012.08/508,639.08
  6. Step 6: Final answer
    x = 389,553.79

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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.