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Finding the Fourth Proportional to 1,977,768.60, 2,965,670.40 and 629,755.20

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Solution

The fourth proportional to 1,977,768.60, 2,965,670.40 and 629,755.20 is: 944,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,768.60 : 2,965,670.40 = 629,755.20 : x
  2. Step 2: Convert to fraction form
    1,977,768.60/2,965,670.40 = 629,755.20/x
  3. Step 3: Cross multiply
    1,977,768.60x = 2,965,670.40 × 629,755.20
  4. Step 4: Simplify right side
    1,977,768.60x = 1,867,646,355,886.08
  5. Step 5: Solve for x
    x = 1,867,646,355,886.08/1,977,768.60
  6. Step 6: Final answer
    x = 944,319.96

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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.