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Finding the Fourth Proportional to 479,568.79, 661,805.00 and 264,708.90

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Solution

The fourth proportional to 479,568.79, 661,805.00 and 264,708.90 is: 365,298.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,568.79 : 661,805.00 = 264,708.90 : x
  2. Step 2: Convert to fraction form
    479,568.79/661,805.00 = 264,708.90/x
  3. Step 3: Cross multiply
    479,568.79x = 661,805.00 × 264,708.90
  4. Step 4: Simplify right side
    479,568.79x = 175,185,672,240.96
  5. Step 5: Solve for x
    x = 175,185,672,240.96/479,568.79
  6. Step 6: Final answer
    x = 365,298.32

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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.