Home / 543,948.20-815,727.90-188,973.80

Finding the Fourth Proportional to 543,948.20, 815,727.90 and 188,973.80

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Solution

The fourth proportional to 543,948.20, 815,727.90 and 188,973.80 is: 283,393.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,948.20 : 815,727.90 = 188,973.80 : x
  2. Step 2: Convert to fraction form
    543,948.20/815,727.90 = 188,973.80/x
  3. Step 3: Cross multiply
    543,948.20x = 815,727.90 × 188,973.80
  4. Step 4: Simplify right side
    543,948.20x = 154,151,201,029.02
  5. Step 5: Solve for x
    x = 154,151,201,029.02/543,948.20
  6. Step 6: Final answer
    x = 283,393.16

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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.