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Finding the Fourth Proportional to 440,266.80, 660,400.20 and 229,855.80

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Solution

The fourth proportional to 440,266.80, 660,400.20 and 229,855.80 is: 344,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,266.80 : 660,400.20 = 229,855.80 : x
  2. Step 2: Convert to fraction form
    440,266.80/660,400.20 = 229,855.80/x
  3. Step 3: Cross multiply
    440,266.80x = 660,400.20 × 229,855.80
  4. Step 4: Simplify right side
    440,266.80x = 151,796,816,291.16
  5. Step 5: Solve for x
    x = 151,796,816,291.16/440,266.80
  6. Step 6: Final answer
    x = 344,783.70

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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.