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Finding the Fourth Proportional to 659,503.72, 988,922.92 and 469,855.72

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Solution

The fourth proportional to 659,503.72, 988,922.92 and 469,855.72 is: 704,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,503.72 : 988,922.92 = 469,855.72 : x
  2. Step 2: Convert to fraction form
    659,503.72/988,922.92 = 469,855.72/x
  3. Step 3: Cross multiply
    659,503.72x = 988,922.92 × 469,855.72
  4. Step 4: Simplify right side
    659,503.72x = 464,651,090,601.10
  5. Step 5: Solve for x
    x = 464,651,090,601.10/659,503.72
  6. Step 6: Final answer
    x = 704,546.58

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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.