Home / 811,999.35-1,217,999.03-251,090.55

Finding the Fourth Proportional to 811,999.35, 1,217,999.03 and 251,090.55

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Solution

The fourth proportional to 811,999.35, 1,217,999.03 and 251,090.55 is: 376,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,999.35 : 1,217,999.03 = 251,090.55 : x
  2. Step 2: Convert to fraction form
    811,999.35/1,217,999.03 = 251,090.55/x
  3. Step 3: Cross multiply
    811,999.35x = 1,217,999.03 × 251,090.55
  4. Step 4: Simplify right side
    811,999.35x = 305,828,045,086.71
  5. Step 5: Solve for x
    x = 305,828,045,086.71/811,999.35
  6. Step 6: Final answer
    x = 376,635.83

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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.