Home / 831,529.11-1,147,510.26-449,555.79

Finding the Fourth Proportional to 831,529.11, 1,147,510.26 and 449,555.79

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Solution

The fourth proportional to 831,529.11, 1,147,510.26 and 449,555.79 is: 620,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,529.11 : 1,147,510.26 = 449,555.79 : x
  2. Step 2: Convert to fraction form
    831,529.11/1,147,510.26 = 449,555.79/x
  3. Step 3: Cross multiply
    831,529.11x = 1,147,510.26 × 449,555.79
  4. Step 4: Simplify right side
    831,529.11x = 515,869,881,467.41
  5. Step 5: Solve for x
    x = 515,869,881,467.41/831,529.11
  6. Step 6: Final answer
    x = 620,387.04

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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.