Home / 507,844.10-761,865.72-187,998.42

Finding the Fourth Proportional to 507,844.10, 761,865.72 and 187,998.42

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Solution

The fourth proportional to 507,844.10, 761,865.72 and 187,998.42 is: 282,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,844.10 : 761,865.72 = 187,998.42 : x
  2. Step 2: Convert to fraction form
    507,844.10/761,865.72 = 187,998.42/x
  3. Step 3: Cross multiply
    507,844.10x = 761,865.72 × 187,998.42
  4. Step 4: Simplify right side
    507,844.10x = 143,229,551,612.16
  5. Step 5: Solve for x
    x = 143,229,551,612.16/507,844.10
  6. Step 6: Final answer
    x = 282,034.49

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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.