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Finding the Fourth Proportional to 1,255,911.54, 1,733,203.54 and 719,471.22

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Solution

The fourth proportional to 1,255,911.54, 1,733,203.54 and 719,471.22 is: 992,896.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,911.54 : 1,733,203.54 = 719,471.22 : x
  2. Step 2: Convert to fraction form
    1,255,911.54/1,733,203.54 = 719,471.22/x
  3. Step 3: Cross multiply
    1,255,911.54x = 1,733,203.54 × 719,471.22
  4. Step 4: Simplify right side
    1,255,911.54x = 1,246,990,065,432.12
  5. Step 5: Solve for x
    x = 1,246,990,065,432.12/1,255,911.54
  6. Step 6: Final answer
    x = 992,896.41

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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.