Home / 714,192.97-985,583.58-391,908.46

Finding the Fourth Proportional to 714,192.97, 985,583.58 and 391,908.46

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Solution

The fourth proportional to 714,192.97, 985,583.58 and 391,908.46 is: 540,832.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,192.97 : 985,583.58 = 391,908.46 : x
  2. Step 2: Convert to fraction form
    714,192.97/985,583.58 = 391,908.46/x
  3. Step 3: Cross multiply
    714,192.97x = 985,583.58 × 391,908.46
  4. Step 4: Simplify right side
    714,192.97x = 386,258,543,039.09
  5. Step 5: Solve for x
    x = 386,258,543,039.09/714,192.97
  6. Step 6: Final answer
    x = 540,832.18

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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.