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Finding the Fourth Proportional to 516,239.88, 774,356.74 and 200,696.79

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Solution

The fourth proportional to 516,239.88, 774,356.74 and 200,696.79 is: 301,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,239.88 : 774,356.74 = 200,696.79 : x
  2. Step 2: Convert to fraction form
    516,239.88/774,356.74 = 200,696.79/x
  3. Step 3: Cross multiply
    516,239.88x = 774,356.74 × 200,696.79
  4. Step 4: Simplify right side
    516,239.88x = 155,410,911,208.12
  5. Step 5: Solve for x
    x = 155,410,911,208.12/516,239.88
  6. Step 6: Final answer
    x = 301,043.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.