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Finding the Fourth Proportional to 479,572.12, 661,809.56 and 264,712.24

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Solution

The fourth proportional to 479,572.12, 661,809.56 and 264,712.24 is: 365,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,572.12 : 661,809.56 = 264,712.24 : x
  2. Step 2: Convert to fraction form
    479,572.12/661,809.56 = 264,712.24/x
  3. Step 3: Cross multiply
    479,572.12x = 661,809.56 × 264,712.24
  4. Step 4: Simplify right side
    479,572.12x = 175,189,086,448.41
  5. Step 5: Solve for x
    x = 175,189,086,448.41/479,572.12
  6. Step 6: Final answer
    x = 365,302.90

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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.