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Finding the Fourth Proportional to 1,065,929.95, 1,599,724.06 and 743,990.37

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Solution

The fourth proportional to 1,065,929.95, 1,599,724.06 and 743,990.37 is: 1,116,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,929.95 : 1,599,724.06 = 743,990.37 : x
  2. Step 2: Convert to fraction form
    1,065,929.95/1,599,724.06 = 743,990.37/x
  3. Step 3: Cross multiply
    1,065,929.95x = 1,599,724.06 × 743,990.37
  4. Step 4: Simplify right side
    1,065,929.95x = 1,190,179,295,297.30
  5. Step 5: Solve for x
    x = 1,190,179,295,297.30/1,065,929.95
  6. Step 6: Final answer
    x = 1,116,564.27

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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.