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Finding the Fourth Proportional to 448,223.60, 672,772.80 and 223,837.40

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Solution

The fourth proportional to 448,223.60, 672,772.80 and 223,837.40 is: 335,974.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,223.60 : 672,772.80 = 223,837.40 : x
  2. Step 2: Convert to fraction form
    448,223.60/672,772.80 = 223,837.40/x
  3. Step 3: Cross multiply
    448,223.60x = 672,772.80 × 223,837.40
  4. Step 4: Simplify right side
    448,223.60x = 150,591,714,342.72
  5. Step 5: Solve for x
    x = 150,591,714,342.72/448,223.60
  6. Step 6: Final answer
    x = 335,974.53

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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.