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Finding the Fourth Proportional to 448,419.92, 672,061.08 and 443,674.04

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Solution

The fourth proportional to 448,419.92, 672,061.08 and 443,674.04 is: 664,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,419.92 : 672,061.08 = 443,674.04 : x
  2. Step 2: Convert to fraction form
    448,419.92/672,061.08 = 443,674.04/x
  3. Step 3: Cross multiply
    448,419.92x = 672,061.08 × 443,674.04
  4. Step 4: Simplify right side
    448,419.92x = 298,176,054,490.36
  5. Step 5: Solve for x
    x = 298,176,054,490.36/448,419.92
  6. Step 6: Final answer
    x = 664,948.28

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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.