Home / 640,910.20-961,460.94-236,071.57

Finding the Fourth Proportional to 640,910.20, 961,460.94 and 236,071.57

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Solution

The fourth proportional to 640,910.20, 961,460.94 and 236,071.57 is: 354,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,910.20 : 961,460.94 = 236,071.57 : x
  2. Step 2: Convert to fraction form
    640,910.20/961,460.94 = 236,071.57/x
  3. Step 3: Cross multiply
    640,910.20x = 961,460.94 × 236,071.57
  4. Step 4: Simplify right side
    640,910.20x = 226,973,593,599.48
  5. Step 5: Solve for x
    x = 226,973,593,599.48/640,910.20
  6. Step 6: Final answer
    x = 354,142.58

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1.5x scale

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.