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Finding the Fourth Proportional to 449,841.04, 620,780.60 and 245,892.80

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Solution

The fourth proportional to 449,841.04, 620,780.60 and 245,892.80 is: 339,332.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,841.04 : 620,780.60 = 245,892.80 : x
  2. Step 2: Convert to fraction form
    449,841.04/620,780.60 = 245,892.80/x
  3. Step 3: Cross multiply
    449,841.04x = 620,780.60 × 245,892.80
  4. Step 4: Simplify right side
    449,841.04x = 152,645,479,919.68
  5. Step 5: Solve for x
    x = 152,645,479,919.68/449,841.04
  6. Step 6: Final answer
    x = 339,332.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.