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Finding the Fourth Proportional to 448,052.10, 672,078.15 and 413,837.70

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Solution

The fourth proportional to 448,052.10, 672,078.15 and 413,837.70 is: 620,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,052.10 : 672,078.15 = 413,837.70 : x
  2. Step 2: Convert to fraction form
    448,052.10/672,078.15 = 413,837.70/x
  3. Step 3: Cross multiply
    448,052.10x = 672,078.15 × 413,837.70
  4. Step 4: Simplify right side
    448,052.10x = 278,131,275,816.26
  5. Step 5: Solve for x
    x = 278,131,275,816.26/448,052.10
  6. Step 6: Final answer
    x = 620,756.55

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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.