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Finding the Fourth Proportional to 504,922.15, 756,807.31 and 315,469.63

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Solution

The fourth proportional to 504,922.15, 756,807.31 and 315,469.63 is: 472,844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,922.15 : 756,807.31 = 315,469.63 : x
  2. Step 2: Convert to fraction form
    504,922.15/756,807.31 = 315,469.63/x
  3. Step 3: Cross multiply
    504,922.15x = 756,807.31 × 315,469.63
  4. Step 4: Simplify right side
    504,922.15x = 238,749,722,067.00
  5. Step 5: Solve for x
    x = 238,749,722,067.00/504,922.15
  6. Step 6: Final answer
    x = 472,844.62

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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.