Home / 622,378.28-857,074.66-540,669.16

Finding the Fourth Proportional to 622,378.28, 857,074.66 and 540,669.16

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Solution

The fourth proportional to 622,378.28, 857,074.66 and 540,669.16 is: 744,553.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,378.28 : 857,074.66 = 540,669.16 : x
  2. Step 2: Convert to fraction form
    622,378.28/857,074.66 = 540,669.16/x
  3. Step 3: Cross multiply
    622,378.28x = 857,074.66 × 540,669.16
  4. Step 4: Simplify right side
    622,378.28x = 463,393,836,479.49
  5. Step 5: Solve for x
    x = 463,393,836,479.49/622,378.28
  6. Step 6: Final answer
    x = 744,553.36

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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.