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Finding the Fourth Proportional to 616,253.57, 850,351.78 and 361,511.81

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Solution

The fourth proportional to 616,253.57, 850,351.78 and 361,511.81 is: 498,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,253.57 : 850,351.78 = 361,511.81 : x
  2. Step 2: Convert to fraction form
    616,253.57/850,351.78 = 361,511.81/x
  3. Step 3: Cross multiply
    616,253.57x = 850,351.78 × 361,511.81
  4. Step 4: Simplify right side
    616,253.57x = 307,412,211,124.52
  5. Step 5: Solve for x
    x = 307,412,211,124.52/616,253.57
  6. Step 6: Final answer
    x = 498,840.45

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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.