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Finding the Fourth Proportional to 659,813.10, 989,622.45 and 186,546.30

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Solution

The fourth proportional to 659,813.10, 989,622.45 and 186,546.30 is: 279,791.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,813.10 : 989,622.45 = 186,546.30 : x
  2. Step 2: Convert to fraction form
    659,813.10/989,622.45 = 186,546.30/x
  3. Step 3: Cross multiply
    659,813.10x = 989,622.45 × 186,546.30
  4. Step 4: Simplify right side
    659,813.10x = 184,610,406,444.44
  5. Step 5: Solve for x
    x = 184,610,406,444.44/659,813.10
  6. Step 6: Final answer
    x = 279,791.97

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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.