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Finding the Fourth Proportional to 889,556, 1,334,472.24 and 298,718.24

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Solution

The fourth proportional to 889,556, 1,334,472.24 and 298,718.24 is: 448,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,556 : 1,334,472.24 = 298,718.24 : x
  2. Step 2: Convert to fraction form
    889,556/1,334,472.24 = 298,718.24/x
  3. Step 3: Cross multiply
    889,556x = 1,334,472.24 × 298,718.24
  4. Step 4: Simplify right side
    889,556x = 398,631,198,861.66
  5. Step 5: Solve for x
    x = 398,631,198,861.66/889,556
  6. Step 6: Final answer
    x = 448,123.78

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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.