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Finding the Fourth Proportional to 6,346,982.72, 9,520,644.78 and 1,797,561.76

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Solution

The fourth proportional to 6,346,982.72, 9,520,644.78 and 1,797,561.76 is: 2,696,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,346,982.72 : 9,520,644.78 = 1,797,561.76 : x
  2. Step 2: Convert to fraction form
    6,346,982.72/9,520,644.78 = 1,797,561.76/x
  3. Step 3: Cross multiply
    6,346,982.72x = 9,520,644.78 × 1,797,561.76
  4. Step 4: Simplify right side
    6,346,982.72x = 17,113,946,987,071.61
  5. Step 5: Solve for x
    x = 17,113,946,987,071.61/6,346,982.72
  6. Step 6: Final answer
    x = 2,696,390.98

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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.