Home / 543,946.20-815,724.90-188,971.80

Finding the Fourth Proportional to 543,946.20, 815,724.90 and 188,971.80

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Solution

The fourth proportional to 543,946.20, 815,724.90 and 188,971.80 is: 283,390.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,946.20 : 815,724.90 = 188,971.80 : x
  2. Step 2: Convert to fraction form
    543,946.20/815,724.90 = 188,971.80/x
  3. Step 3: Cross multiply
    543,946.20x = 815,724.90 × 188,971.80
  4. Step 4: Simplify right side
    543,946.20x = 154,149,002,657.82
  5. Step 5: Solve for x
    x = 154,149,002,657.82/543,946.20
  6. Step 6: Final answer
    x = 283,390.16

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Double scale
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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.