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Finding the Fourth Proportional to 351,430.80, 527,197.70 and 111,464.64

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Solution

The fourth proportional to 351,430.80, 527,197.70 and 111,464.64 is: 167,213.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,430.80 : 527,197.70 = 111,464.64 : x
  2. Step 2: Convert to fraction form
    351,430.80/527,197.70 = 111,464.64/x
  3. Step 3: Cross multiply
    351,430.80x = 527,197.70 × 111,464.64
  4. Step 4: Simplify right side
    351,430.80x = 58,763,901,839.33
  5. Step 5: Solve for x
    x = 58,763,901,839.33/351,430.80
  6. Step 6: Final answer
    x = 167,213.29

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1.5x scale

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.