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Finding the Fourth Proportional to 1,065,935.12, 1,599,731.76 and 743,995.52

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Solution

The fourth proportional to 1,065,935.12, 1,599,731.76 and 743,995.52 is: 1,116,571.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,935.12 : 1,599,731.76 = 743,995.52 : x
  2. Step 2: Convert to fraction form
    1,065,935.12/1,599,731.76 = 743,995.52/x
  3. Step 3: Cross multiply
    1,065,935.12x = 1,599,731.76 × 743,995.52
  4. Step 4: Simplify right side
    1,065,935.12x = 1,190,193,262,641.72
  5. Step 5: Solve for x
    x = 1,190,193,262,641.72/1,065,935.12
  6. Step 6: Final answer
    x = 1,116,571.96

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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.