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Finding the Fourth Proportional to 449,618.40, 674,330.40 and 196,898.40

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Solution

The fourth proportional to 449,618.40, 674,330.40 and 196,898.40 is: 295,305.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,618.40 : 674,330.40 = 196,898.40 : x
  2. Step 2: Convert to fraction form
    449,618.40/674,330.40 = 196,898.40/x
  3. Step 3: Cross multiply
    449,618.40x = 674,330.40 × 196,898.40
  4. Step 4: Simplify right side
    449,618.40x = 132,774,576,831.36
  5. Step 5: Solve for x
    x = 132,774,576,831.36/449,618.40
  6. Step 6: Final answer
    x = 295,305.03

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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.