Home / 986,787.24-1,361,756.70-557,058.12

Finding the Fourth Proportional to 986,787.24, 1,361,756.70 and 557,058.12

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Solution

The fourth proportional to 986,787.24, 1,361,756.70 and 557,058.12 is: 768,734.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,787.24 : 1,361,756.70 = 557,058.12 : x
  2. Step 2: Convert to fraction form
    986,787.24/1,361,756.70 = 557,058.12/x
  3. Step 3: Cross multiply
    986,787.24x = 1,361,756.70 × 557,058.12
  4. Step 4: Simplify right side
    986,787.24x = 758,577,627,199.40
  5. Step 5: Solve for x
    x = 758,577,627,199.40/986,787.24
  6. Step 6: Final answer
    x = 768,734.73

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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.