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Finding the Fourth Proportional to 383,752.89, 529,472.70 and 247,792.57

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Solution

The fourth proportional to 383,752.89, 529,472.70 and 247,792.57 is: 341,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,752.89 : 529,472.70 = 247,792.57 : x
  2. Step 2: Convert to fraction form
    383,752.89/529,472.70 = 247,792.57/x
  3. Step 3: Cross multiply
    383,752.89x = 529,472.70 × 247,792.57
  4. Step 4: Simplify right side
    383,752.89x = 131,199,399,754.16
  5. Step 5: Solve for x
    x = 131,199,399,754.16/383,752.89
  6. Step 6: Final answer
    x = 341,885.11

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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.