Home / 419,645,577.60-629,468,366.40-394,115,414.40

Finding the Fourth Proportional to 419,645,577.60, 629,468,366.40 and 394,115,414.40

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Solution

The fourth proportional to 419,645,577.60, 629,468,366.40 and 394,115,414.40 is: 591,173,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,645,577.60 : 629,468,366.40 = 394,115,414.40 : x
  2. Step 2: Convert to fraction form
    419,645,577.60/629,468,366.40 = 394,115,414.40/x
  3. Step 3: Cross multiply
    419,645,577.60x = 629,468,366.40 × 394,115,414.40
  4. Step 4: Simplify right side
    419,645,577.60x = 248,083,186,075,427,008
  5. Step 5: Solve for x
    x = 248,083,186,075,427,008/419,645,577.60
  6. Step 6: Final answer
    x = 591,173,121.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.