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Finding the Fourth Proportional to 449,855.60, 674,005.80 and 292,002.80

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Solution

The fourth proportional to 449,855.60, 674,005.80 and 292,002.80 is: 437,499.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,855.60 : 674,005.80 = 292,002.80 : x
  2. Step 2: Convert to fraction form
    449,855.60/674,005.80 = 292,002.80/x
  3. Step 3: Cross multiply
    449,855.60x = 674,005.80 × 292,002.80
  4. Step 4: Simplify right side
    449,855.60x = 196,811,580,816.24
  5. Step 5: Solve for x
    x = 196,811,580,816.24/449,855.60
  6. Step 6: Final answer
    x = 437,499.46

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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.