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Finding the Fourth Proportional to 570,643.88, 855,963.76 and 171,282.92

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Solution

The fourth proportional to 570,643.88, 855,963.76 and 171,282.92 is: 256,923.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,643.88 : 855,963.76 = 171,282.92 : x
  2. Step 2: Convert to fraction form
    570,643.88/855,963.76 = 171,282.92/x
  3. Step 3: Cross multiply
    570,643.88x = 855,963.76 × 171,282.92
  4. Step 4: Simplify right side
    570,643.88x = 146,611,972,226.98
  5. Step 5: Solve for x
    x = 146,611,972,226.98/570,643.88
  6. Step 6: Final answer
    x = 256,923.76

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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.