Home / 808,097.40-1,115,153.82-445,512.78

Finding the Fourth Proportional to 808,097.40, 1,115,153.82 and 445,512.78

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Solution

The fourth proportional to 808,097.40, 1,115,153.82 and 445,512.78 is: 614,796.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,097.40 : 1,115,153.82 = 445,512.78 : x
  2. Step 2: Convert to fraction form
    808,097.40/1,115,153.82 = 445,512.78/x
  3. Step 3: Cross multiply
    808,097.40x = 1,115,153.82 × 445,512.78
  4. Step 4: Simplify right side
    808,097.40x = 496,815,278,475.82
  5. Step 5: Solve for x
    x = 496,815,278,475.82/808,097.40
  6. Step 6: Final answer
    x = 614,796.28

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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.