Home / 831,086.19-1,146,898.91-449,112.97

Finding the Fourth Proportional to 831,086.19, 1,146,898.91 and 449,112.97

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Solution

The fourth proportional to 831,086.19, 1,146,898.91 and 449,112.97 is: 619,775.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,086.19 : 1,146,898.91 = 449,112.97 : x
  2. Step 2: Convert to fraction form
    831,086.19/1,146,898.91 = 449,112.97/x
  3. Step 3: Cross multiply
    831,086.19x = 1,146,898.91 × 449,112.97
  4. Step 4: Simplify right side
    831,086.19x = 515,087,167,779.80
  5. Step 5: Solve for x
    x = 515,087,167,779.80/831,086.19
  6. Step 6: Final answer
    x = 619,775.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.