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Finding the Fourth Proportional to 383,578.52, 529,565.16 and 341,019.26

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Solution

The fourth proportional to 383,578.52, 529,565.16 and 341,019.26 is: 470,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,578.52 : 529,565.16 = 341,019.26 : x
  2. Step 2: Convert to fraction form
    383,578.52/529,565.16 = 341,019.26/x
  3. Step 3: Cross multiply
    383,578.52x = 529,565.16 × 341,019.26
  4. Step 4: Simplify right side
    383,578.52x = 180,591,918,984.98
  5. Step 5: Solve for x
    x = 180,591,918,984.98/383,578.52
  6. Step 6: Final answer
    x = 470,808.22

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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.