Home / 641,179.74-961,962.18-191,915.28

Finding the Fourth Proportional to 641,179.74, 961,962.18 and 191,915.28

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Solution

The fourth proportional to 641,179.74, 961,962.18 and 191,915.28 is: 287,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,179.74 : 961,962.18 = 191,915.28 : x
  2. Step 2: Convert to fraction form
    641,179.74/961,962.18 = 191,915.28/x
  3. Step 3: Cross multiply
    641,179.74x = 961,962.18 × 191,915.28
  4. Step 4: Simplify right side
    641,179.74x = 184,615,241,124.11
  5. Step 5: Solve for x
    x = 184,615,241,124.11/641,179.74
  6. Step 6: Final answer
    x = 287,930.56

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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.