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Finding the Fourth Proportional to 571,289.92, 856,937.92 and 171,927.96

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Solution

The fourth proportional to 571,289.92, 856,937.92 and 171,927.96 is: 257,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,289.92 : 856,937.92 = 171,927.96 : x
  2. Step 2: Convert to fraction form
    571,289.92/856,937.92 = 171,927.96/x
  3. Step 3: Cross multiply
    571,289.92x = 856,937.92 × 171,927.96
  4. Step 4: Simplify right side
    571,289.92x = 147,331,588,432.24
  5. Step 5: Solve for x
    x = 147,331,588,432.24/571,289.92
  6. Step 6: Final answer
    x = 257,892.85

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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.