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Finding the Fourth Proportional to 621,568.41, 857,773.17 and 366,919.53

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Solution

The fourth proportional to 621,568.41, 857,773.17 and 366,919.53 is: 506,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,568.41 : 857,773.17 = 366,919.53 : x
  2. Step 2: Convert to fraction form
    621,568.41/857,773.17 = 366,919.53/x
  3. Step 3: Cross multiply
    621,568.41x = 857,773.17 × 366,919.53
  4. Step 4: Simplify right side
    621,568.41x = 314,733,728,383.01
  5. Step 5: Solve for x
    x = 314,733,728,383.01/621,568.41
  6. Step 6: Final answer
    x = 506,354.13

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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.