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Finding the Fourth Proportional to 469,809.54, 648,331.56 and 254,947.86

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Solution

The fourth proportional to 469,809.54, 648,331.56 and 254,947.86 is: 351,825.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,809.54 : 648,331.56 = 254,947.86 : x
  2. Step 2: Convert to fraction form
    469,809.54/648,331.56 = 254,947.86/x
  3. Step 3: Cross multiply
    469,809.54x = 648,331.56 × 254,947.86
  4. Step 4: Simplify right side
    469,809.54x = 165,290,743,792.46
  5. Step 5: Solve for x
    x = 165,290,743,792.46/469,809.54
  6. Step 6: Final answer
    x = 351,825.01

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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.