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Finding the Fourth Proportional to 574,534.20, 792,889.90 and 345,161.64

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Solution

The fourth proportional to 574,534.20, 792,889.90 and 345,161.64 is: 476,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,534.20 : 792,889.90 = 345,161.64 : x
  2. Step 2: Convert to fraction form
    574,534.20/792,889.90 = 345,161.64/x
  3. Step 3: Cross multiply
    574,534.20x = 792,889.90 × 345,161.64
  4. Step 4: Simplify right side
    574,534.20x = 273,675,178,223.44
  5. Step 5: Solve for x
    x = 273,675,178,223.44/574,534.20
  6. Step 6: Final answer
    x = 476,342.71

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1.5x scale

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.