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Finding the Fourth Proportional to 570,969.92, 856,497.36 and 171,578.72

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Solution

The fourth proportional to 570,969.92, 856,497.36 and 171,578.72 is: 257,380.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,969.92 : 856,497.36 = 171,578.72 : x
  2. Step 2: Convert to fraction form
    570,969.92/856,497.36 = 171,578.72/x
  3. Step 3: Cross multiply
    570,969.92x = 856,497.36 × 171,578.72
  4. Step 4: Simplify right side
    570,969.92x = 146,956,720,712.18
  5. Step 5: Solve for x
    x = 146,956,720,712.18/570,969.92
  6. Step 6: Final answer
    x = 257,380.85

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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.