Home / 714,261.53-985,709.32-391,983.26

Finding the Fourth Proportional to 714,261.53, 985,709.32 and 391,983.26

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Solution

The fourth proportional to 714,261.53, 985,709.32 and 391,983.26 is: 540,952.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,261.53 : 985,709.32 = 391,983.26 : x
  2. Step 2: Convert to fraction form
    714,261.53/985,709.32 = 391,983.26/x
  3. Step 3: Cross multiply
    714,261.53x = 985,709.32 × 391,983.26
  4. Step 4: Simplify right side
    714,261.53x = 386,381,546,757.48
  5. Step 5: Solve for x
    x = 386,381,546,757.48/714,261.53
  6. Step 6: Final answer
    x = 540,952.48

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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.