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Finding the Fourth Proportional to 571,340.96, 856,273.31 and 271,913.32

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Solution

The fourth proportional to 571,340.96, 856,273.31 and 271,913.32 is: 407,518.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,340.96 : 856,273.31 = 271,913.32 : x
  2. Step 2: Convert to fraction form
    571,340.96/856,273.31 = 271,913.32/x
  3. Step 3: Cross multiply
    571,340.96x = 856,273.31 × 271,913.32
  4. Step 4: Simplify right side
    571,340.96x = 232,832,119,279.94
  5. Step 5: Solve for x
    x = 232,832,119,279.94/571,340.96
  6. Step 6: Final answer
    x = 407,518.69

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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.