Home / 831,712.05-1,147,769.49-459,186.98

Finding the Fourth Proportional to 831,712.05, 1,147,769.49 and 459,186.98

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Solution

The fourth proportional to 831,712.05, 1,147,769.49 and 459,186.98 is: 633,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,712.05 : 1,147,769.49 = 459,186.98 : x
  2. Step 2: Convert to fraction form
    831,712.05/1,147,769.49 = 459,186.98/x
  3. Step 3: Cross multiply
    831,712.05x = 1,147,769.49 × 459,186.98
  4. Step 4: Simplify right side
    831,712.05x = 527,040,801,832.34
  5. Step 5: Solve for x
    x = 527,040,801,832.34/831,712.05
  6. Step 6: Final answer
    x = 633,681.82

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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.