Home / 662,976.30-995,331.69-393,596.22

Finding the Fourth Proportional to 662,976.30, 995,331.69 and 393,596.22

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Solution

The fourth proportional to 662,976.30, 995,331.69 and 393,596.22 is: 590,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,976.30 : 995,331.69 = 393,596.22 : x
  2. Step 2: Convert to fraction form
    662,976.30/995,331.69 = 393,596.22/x
  3. Step 3: Cross multiply
    662,976.30x = 995,331.69 × 393,596.22
  4. Step 4: Simplify right side
    662,976.30x = 391,758,790,830.21
  5. Step 5: Solve for x
    x = 391,758,790,830.21/662,976.30
  6. Step 6: Final answer
    x = 590,909.19

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Double scale
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Similar ratio
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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.