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Finding the Fourth Proportional to 574,408.40, 792,652.43 and 316,234.86

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Solution

The fourth proportional to 574,408.40, 792,652.43 and 316,234.86 is: 436,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,408.40 : 792,652.43 = 316,234.86 : x
  2. Step 2: Convert to fraction form
    574,408.40/792,652.43 = 316,234.86/x
  3. Step 3: Cross multiply
    574,408.40x = 792,652.43 × 316,234.86
  4. Step 4: Simplify right side
    574,408.40x = 250,664,328,648.54
  5. Step 5: Solve for x
    x = 250,664,328,648.54/574,408.40
  6. Step 6: Final answer
    x = 436,386.95

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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.