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Finding the Fourth Proportional to 2,669,360.40, 4,003,651.80 and 775,904.40

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Solution

The fourth proportional to 2,669,360.40, 4,003,651.80 and 775,904.40 is: 1,163,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669,360.40 : 4,003,651.80 = 775,904.40 : x
  2. Step 2: Convert to fraction form
    2,669,360.40/4,003,651.80 = 775,904.40/x
  3. Step 3: Cross multiply
    2,669,360.40x = 4,003,651.80 × 775,904.40
  4. Step 4: Simplify right side
    2,669,360.40x = 3,106,451,047,687.92
  5. Step 5: Solve for x
    x = 3,106,451,047,687.92/2,669,360.40
  6. Step 6: Final answer
    x = 1,163,743.59

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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.