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Finding the Fourth Proportional to 570,977.92, 856,509.36 and 171,586.72

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Solution

The fourth proportional to 570,977.92, 856,509.36 and 171,586.72 is: 257,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,977.92 : 856,509.36 = 171,586.72 : x
  2. Step 2: Convert to fraction form
    570,977.92/856,509.36 = 171,586.72/x
  3. Step 3: Cross multiply
    570,977.92x = 856,509.36 × 171,586.72
  4. Step 4: Simplify right side
    570,977.92x = 146,965,631,731.70
  5. Step 5: Solve for x
    x = 146,965,631,731.70/570,977.92
  6. Step 6: Final answer
    x = 257,392.85

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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.