Home / 831,362.22-1,147,279.37-449,389.01

Finding the Fourth Proportional to 831,362.22, 1,147,279.37 and 449,389.01

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Solution

The fourth proportional to 831,362.22, 1,147,279.37 and 449,389.01 is: 620,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,362.22 : 1,147,279.37 = 449,389.01 : x
  2. Step 2: Convert to fraction form
    831,362.22/1,147,279.37 = 449,389.01/x
  3. Step 3: Cross multiply
    831,362.22x = 1,147,279.37 × 449,389.01
  4. Step 4: Simplify right side
    831,362.22x = 515,574,732,294.38
  5. Step 5: Solve for x
    x = 515,574,732,294.38/831,362.22
  6. Step 6: Final answer
    x = 620,156.56

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Double scale
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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.