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Finding the Fourth Proportional to 329,317.28, 493,972.08 and 79,999.52

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Solution

The fourth proportional to 329,317.28, 493,972.08 and 79,999.52 is: 119,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,317.28 : 493,972.08 = 79,999.52 : x
  2. Step 2: Convert to fraction form
    329,317.28/493,972.08 = 79,999.52/x
  3. Step 3: Cross multiply
    329,317.28x = 493,972.08 × 79,999.52
  4. Step 4: Simplify right side
    329,317.28x = 39,517,529,293.40
  5. Step 5: Solve for x
    x = 39,517,529,293.40/329,317.28
  6. Step 6: Final answer
    x = 119,998.35

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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.