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Finding the Fourth Proportional to 515,959.92, 774,161.64 and 266,816.88

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Solution

The fourth proportional to 515,959.92, 774,161.64 and 266,816.88 is: 400,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,959.92 : 774,161.64 = 266,816.88 : x
  2. Step 2: Convert to fraction form
    515,959.92/774,161.64 = 266,816.88/x
  3. Step 3: Cross multiply
    515,959.92x = 774,161.64 × 266,816.88
  4. Step 4: Simplify right side
    515,959.92x = 206,559,393,400.48
  5. Step 5: Solve for x
    x = 206,559,393,400.48/515,959.92
  6. Step 6: Final answer
    x = 400,340.00

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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.