Home / 821,930.95-1,134,255.85-454,406.51

Finding the Fourth Proportional to 821,930.95, 1,134,255.85 and 454,406.51

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Solution

The fourth proportional to 821,930.95, 1,134,255.85 and 454,406.51 is: 627,076.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,930.95 : 1,134,255.85 = 454,406.51 : x
  2. Step 2: Convert to fraction form
    821,930.95/1,134,255.85 = 454,406.51/x
  3. Step 3: Cross multiply
    821,930.95x = 1,134,255.85 × 454,406.51
  4. Step 4: Simplify right side
    821,930.95x = 515,413,242,245.58
  5. Step 5: Solve for x
    x = 515,413,242,245.58/821,930.95
  6. Step 6: Final answer
    x = 627,076.08

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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.