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Finding the Fourth Proportional to 455,788.80, 683,716.46 and 156,266.85

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Solution

The fourth proportional to 455,788.80, 683,716.46 and 156,266.85 is: 234,411.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,788.80 : 683,716.46 = 156,266.85 : x
  2. Step 2: Convert to fraction form
    455,788.80/683,716.46 = 156,266.85/x
  3. Step 3: Cross multiply
    455,788.80x = 683,716.46 × 156,266.85
  4. Step 4: Simplify right side
    455,788.80x = 106,842,217,497.35
  5. Step 5: Solve for x
    x = 106,842,217,497.35/455,788.80
  6. Step 6: Final answer
    x = 234,411.68

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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.