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Finding the Fourth Proportional to 479,773.62, 719,804.25 and 142,826.04

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Solution

The fourth proportional to 479,773.62, 719,804.25 and 142,826.04 is: 214,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,773.62 : 719,804.25 = 142,826.04 : x
  2. Step 2: Convert to fraction form
    479,773.62/719,804.25 = 142,826.04/x
  3. Step 3: Cross multiply
    479,773.62x = 719,804.25 × 142,826.04
  4. Step 4: Simplify right side
    479,773.62x = 102,806,790,602.67
  5. Step 5: Solve for x
    x = 102,806,790,602.67/479,773.62
  6. Step 6: Final answer
    x = 214,281.87

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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.