Home / 831,663.50-1,247,649.21-263,187.68

Finding the Fourth Proportional to 831,663.50, 1,247,649.21 and 263,187.68

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Solution

The fourth proportional to 831,663.50, 1,247,649.21 and 263,187.68 is: 394,830.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,663.50 : 1,247,649.21 = 263,187.68 : x
  2. Step 2: Convert to fraction form
    831,663.50/1,247,649.21 = 263,187.68/x
  3. Step 3: Cross multiply
    831,663.50x = 1,247,649.21 × 263,187.68
  4. Step 4: Simplify right side
    831,663.50x = 328,365,894,795.49
  5. Step 5: Solve for x
    x = 328,365,894,795.49/831,663.50
  6. Step 6: Final answer
    x = 394,830.24

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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.