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Finding the Fourth Proportional to 455,046.80, 683,088.60 and 268,163.60

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Solution

The fourth proportional to 455,046.80, 683,088.60 and 268,163.60 is: 402,550.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,046.80 : 683,088.60 = 268,163.60 : x
  2. Step 2: Convert to fraction form
    455,046.80/683,088.60 = 268,163.60/x
  3. Step 3: Cross multiply
    455,046.80x = 683,088.60 × 268,163.60
  4. Step 4: Simplify right side
    455,046.80x = 183,179,498,094.96
  5. Step 5: Solve for x
    x = 183,179,498,094.96/455,046.80
  6. Step 6: Final answer
    x = 402,550.90

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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.