Home / 536,112.20-804,168.30-142,128.20

Finding the Fourth Proportional to 536,112.20, 804,168.30 and 142,128.20

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Solution

The fourth proportional to 536,112.20, 804,168.30 and 142,128.20 is: 213,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,112.20 : 804,168.30 = 142,128.20 : x
  2. Step 2: Convert to fraction form
    536,112.20/804,168.30 = 142,128.20/x
  3. Step 3: Cross multiply
    536,112.20x = 804,168.30 × 142,128.20
  4. Step 4: Simplify right side
    536,112.20x = 114,294,992,976.06
  5. Step 5: Solve for x
    x = 114,294,992,976.06/536,112.20
  6. Step 6: Final answer
    x = 213,192.30

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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.