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Finding the Fourth Proportional to 469,600.88, 703,937.98 and 300,640.28

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Solution

The fourth proportional to 469,600.88, 703,937.98 and 300,640.28 is: 450,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,600.88 : 703,937.98 = 300,640.28 : x
  2. Step 2: Convert to fraction form
    469,600.88/703,937.98 = 300,640.28/x
  3. Step 3: Cross multiply
    469,600.88x = 703,937.98 × 300,640.28
  4. Step 4: Simplify right side
    469,600.88x = 211,632,111,409.83
  5. Step 5: Solve for x
    x = 211,632,111,409.83/469,600.88
  6. Step 6: Final answer
    x = 450,663.79

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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.