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Finding the Fourth Proportional to 1,300,760.52, 1,793,856.78 and 1,116,936.54

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Solution

The fourth proportional to 1,300,760.52, 1,793,856.78 and 1,116,936.54 is: 1,540,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,760.52 : 1,793,856.78 = 1,116,936.54 : x
  2. Step 2: Convert to fraction form
    1,300,760.52/1,793,856.78 = 1,116,936.54/x
  3. Step 3: Cross multiply
    1,300,760.52x = 1,793,856.78 × 1,116,936.54
  4. Step 4: Simplify right side
    1,300,760.52x = 2,003,624,185,108.74
  5. Step 5: Solve for x
    x = 2,003,624,185,108.74/1,300,760.52
  6. Step 6: Final answer
    x = 1,540,348.25

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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.