Home / 455,126.58-627,945.21-273,747.78

Finding the Fourth Proportional to 455,126.58, 627,945.21 and 273,747.78

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Solution

The fourth proportional to 455,126.58, 627,945.21 and 273,747.78 is: 377,694.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,126.58 : 627,945.21 = 273,747.78 : x
  2. Step 2: Convert to fraction form
    455,126.58/627,945.21 = 273,747.78/x
  3. Step 3: Cross multiply
    455,126.58x = 627,945.21 × 273,747.78
  4. Step 4: Simplify right side
    455,126.58x = 171,898,607,199.13
  5. Step 5: Solve for x
    x = 171,898,607,199.13/455,126.58
  6. Step 6: Final answer
    x = 377,694.06

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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.