Home / 455,916.71-683,774.29-131,634.36

Finding the Fourth Proportional to 455,916.71, 683,774.29 and 131,634.36

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Solution

The fourth proportional to 455,916.71, 683,774.29 and 131,634.36 is: 197,422.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,916.71 : 683,774.29 = 131,634.36 : x
  2. Step 2: Convert to fraction form
    455,916.71/683,774.29 = 131,634.36/x
  3. Step 3: Cross multiply
    455,916.71x = 683,774.29 × 131,634.36
  4. Step 4: Simplify right side
    455,916.71x = 90,008,191,213.15
  5. Step 5: Solve for x
    x = 90,008,191,213.15/455,916.71
  6. Step 6: Final answer
    x = 197,422.44

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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.