Home / 831,401.88-1,247,105.40-232,359.09

Finding the Fourth Proportional to 831,401.88, 1,247,105.40 and 232,359.09

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Solution

The fourth proportional to 831,401.88, 1,247,105.40 and 232,359.09 is: 348,539.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,401.88 : 1,247,105.40 = 232,359.09 : x
  2. Step 2: Convert to fraction form
    831,401.88/1,247,105.40 = 232,359.09/x
  3. Step 3: Cross multiply
    831,401.88x = 1,247,105.40 × 232,359.09
  4. Step 4: Simplify right side
    831,401.88x = 289,776,275,878.09
  5. Step 5: Solve for x
    x = 289,776,275,878.09/831,401.88
  6. Step 6: Final answer
    x = 348,539.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.