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Finding the Fourth Proportional to 383,452.10, 574,522.05 and 243,046.70

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Solution

The fourth proportional to 383,452.10, 574,522.05 and 243,046.70 is: 364,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,452.10 : 574,522.05 = 243,046.70 : x
  2. Step 2: Convert to fraction form
    383,452.10/574,522.05 = 243,046.70/x
  3. Step 3: Cross multiply
    383,452.10x = 574,522.05 × 243,046.70
  4. Step 4: Simplify right side
    383,452.10x = 139,635,688,329.74
  5. Step 5: Solve for x
    x = 139,635,688,329.74/383,452.10
  6. Step 6: Final answer
    x = 364,154.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.