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Finding the Fourth Proportional to 567,418.41, 783,037.22 and 312,773.85

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Solution

The fourth proportional to 567,418.41, 783,037.22 and 312,773.85 is: 431,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,418.41 : 783,037.22 = 312,773.85 : x
  2. Step 2: Convert to fraction form
    567,418.41/783,037.22 = 312,773.85/x
  3. Step 3: Cross multiply
    567,418.41x = 783,037.22 × 312,773.85
  4. Step 4: Simplify right side
    567,418.41x = 244,913,564,428.83
  5. Step 5: Solve for x
    x = 244,913,564,428.83/567,418.41
  6. Step 6: Final answer
    x = 431,627.81

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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.