Home / 714,441.97-985,921.54-387,755.56

Finding the Fourth Proportional to 714,441.97, 985,921.54 and 387,755.56

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Solution

The fourth proportional to 714,441.97, 985,921.54 and 387,755.56 is: 535,098.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,441.97 : 985,921.54 = 387,755.56 : x
  2. Step 2: Convert to fraction form
    714,441.97/985,921.54 = 387,755.56/x
  3. Step 3: Cross multiply
    714,441.97x = 985,921.54 × 387,755.56
  4. Step 4: Simplify right side
    714,441.97x = 382,296,553,575.97
  5. Step 5: Solve for x
    x = 382,296,553,575.97/714,441.97
  6. Step 6: Final answer
    x = 535,098.12

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1.5x scale

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.