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Finding the Fourth Proportional to 449,460.80, 673,063.68 and 406,854.80

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Solution

The fourth proportional to 449,460.80, 673,063.68 and 406,854.80 is: 609,261.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,460.80 : 673,063.68 = 406,854.80 : x
  2. Step 2: Convert to fraction form
    449,460.80/673,063.68 = 406,854.80/x
  3. Step 3: Cross multiply
    449,460.80x = 673,063.68 × 406,854.80
  4. Step 4: Simplify right side
    449,460.80x = 273,839,188,913.66
  5. Step 5: Solve for x
    x = 273,839,188,913.66/449,460.80
  6. Step 6: Final answer
    x = 609,261.56

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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.