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Finding the Fourth Proportional to 1,263,865.46, 1,743,708.50 and 719,616.32

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Solution

The fourth proportional to 1,263,865.46, 1,743,708.50 and 719,616.32 is: 992,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,865.46 : 1,743,708.50 = 719,616.32 : x
  2. Step 2: Convert to fraction form
    1,263,865.46/1,743,708.50 = 719,616.32/x
  3. Step 3: Cross multiply
    1,263,865.46x = 1,743,708.50 × 719,616.32
  4. Step 4: Simplify right side
    1,263,865.46x = 1,254,801,093,922.72
  5. Step 5: Solve for x
    x = 1,254,801,093,922.72/1,263,865.46
  6. Step 6: Final answer
    x = 992,828.06

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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.