Home / 385,915.73-579,403.77-196,503.30

Finding the Fourth Proportional to 385,915.73, 579,403.77 and 196,503.30

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Solution

The fourth proportional to 385,915.73, 579,403.77 and 196,503.30 is: 295,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,915.73 : 579,403.77 = 196,503.30 : x
  2. Step 2: Convert to fraction form
    385,915.73/579,403.77 = 196,503.30/x
  3. Step 3: Cross multiply
    385,915.73x = 579,403.77 × 196,503.30
  4. Step 4: Simplify right side
    385,915.73x = 113,854,752,837.44
  5. Step 5: Solve for x
    x = 113,854,752,837.44/385,915.73
  6. Step 6: Final answer
    x = 295,024.91

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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.