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Finding the Fourth Proportional to 1,781,367.80, 2,672,051.70 and 1,600,964.60

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Solution

The fourth proportional to 1,781,367.80, 2,672,051.70 and 1,600,964.60 is: 2,401,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,367.80 : 2,672,051.70 = 1,600,964.60 : x
  2. Step 2: Convert to fraction form
    1,781,367.80/2,672,051.70 = 1,600,964.60/x
  3. Step 3: Cross multiply
    1,781,367.80x = 2,672,051.70 × 1,600,964.60
  4. Step 4: Simplify right side
    1,781,367.80x = 4,277,860,181,069.82
  5. Step 5: Solve for x
    x = 4,277,860,181,069.82/1,781,367.80
  6. Step 6: Final answer
    x = 2,401,446.90

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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.