Home / 638,714.82-881,396.78-366,591.18

Finding the Fourth Proportional to 638,714.82, 881,396.78 and 366,591.18

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Solution

The fourth proportional to 638,714.82, 881,396.78 and 366,591.18 is: 505,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,714.82 : 881,396.78 = 366,591.18 : x
  2. Step 2: Convert to fraction form
    638,714.82/881,396.78 = 366,591.18/x
  3. Step 3: Cross multiply
    638,714.82x = 881,396.78 × 366,591.18
  4. Step 4: Simplify right side
    638,714.82x = 323,112,285,628.40
  5. Step 5: Solve for x
    x = 323,112,285,628.40/638,714.82
  6. Step 6: Final answer
    x = 505,878.80

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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.