Home / 714,199.07-985,593.31-387,511.97

Finding the Fourth Proportional to 714,199.07, 985,593.31 and 387,511.97

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Solution

The fourth proportional to 714,199.07, 985,593.31 and 387,511.97 is: 534,765.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,199.07 : 985,593.31 = 387,511.97 : x
  2. Step 2: Convert to fraction form
    714,199.07/985,593.31 = 387,511.97/x
  3. Step 3: Cross multiply
    714,199.07x = 985,593.31 × 387,511.97
  4. Step 4: Simplify right side
    714,199.07x = 381,929,199,280.17
  5. Step 5: Solve for x
    x = 381,929,199,280.17/714,199.07
  6. Step 6: Final answer
    x = 534,765.75

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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.