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Finding the Fourth Proportional to 469,999.80, 648,682.56 and 266,062.32

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Solution

The fourth proportional to 469,999.80, 648,682.56 and 266,062.32 is: 367,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,999.80 : 648,682.56 = 266,062.32 : x
  2. Step 2: Convert to fraction form
    469,999.80/648,682.56 = 266,062.32/x
  3. Step 3: Cross multiply
    469,999.80x = 648,682.56 × 266,062.32
  4. Step 4: Simplify right side
    469,999.80x = 172,589,986,857.14
  5. Step 5: Solve for x
    x = 172,589,986,857.14/469,999.80
  6. Step 6: Final answer
    x = 367,212.89

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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.