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Finding the Fourth Proportional to 666,187.94, 998,922.08 and 345,544.94

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Solution

The fourth proportional to 666,187.94, 998,922.08 and 345,544.94 is: 518,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,187.94 : 998,922.08 = 345,544.94 : x
  2. Step 2: Convert to fraction form
    666,187.94/998,922.08 = 345,544.94/x
  3. Step 3: Cross multiply
    666,187.94x = 998,922.08 × 345,544.94
  4. Step 4: Simplify right side
    666,187.94x = 345,172,473,559.44
  5. Step 5: Solve for x
    x = 345,172,473,559.44/666,187.94
  6. Step 6: Final answer
    x = 518,130.77

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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.