Home / 831,666.41-1,147,700.46-449,693.09

Finding the Fourth Proportional to 831,666.41, 1,147,700.46 and 449,693.09

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Solution

The fourth proportional to 831,666.41, 1,147,700.46 and 449,693.09 is: 620,576.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,666.41 : 1,147,700.46 = 449,693.09 : x
  2. Step 2: Convert to fraction form
    831,666.41/1,147,700.46 = 449,693.09/x
  3. Step 3: Cross multiply
    831,666.41x = 1,147,700.46 × 449,693.09
  4. Step 4: Simplify right side
    831,666.41x = 516,112,960,513.32
  5. Step 5: Solve for x
    x = 516,112,960,513.32/831,666.41
  6. Step 6: Final answer
    x = 620,576.90

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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.