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Finding the Fourth Proportional to 3,669,985.35, 5,504,978.03 and 974,726.55

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Solution

The fourth proportional to 3,669,985.35, 5,504,978.03 and 974,726.55 is: 1,462,089.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,985.35 : 5,504,978.03 = 974,726.55 : x
  2. Step 2: Convert to fraction form
    3,669,985.35/5,504,978.03 = 974,726.55/x
  3. Step 3: Cross multiply
    3,669,985.35x = 5,504,978.03 × 974,726.55
  4. Step 4: Simplify right side
    3,669,985.35x = 5,365,848,238,134.06
  5. Step 5: Solve for x
    x = 5,365,848,238,134.06/3,669,985.35
  6. Step 6: Final answer
    x = 1,462,089.83

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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.