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Finding the Fourth Proportional to 1,764,928.60, 2,648,139.54 and 965,276.60

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Solution

The fourth proportional to 1,764,928.60, 2,648,139.54 and 965,276.60 is: 1,448,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,928.60 : 2,648,139.54 = 965,276.60 : x
  2. Step 2: Convert to fraction form
    1,764,928.60/2,648,139.54 = 965,276.60/x
  3. Step 3: Cross multiply
    1,764,928.60x = 2,648,139.54 × 965,276.60
  4. Step 4: Simplify right side
    1,764,928.60x = 2,556,187,131,496.76
  5. Step 5: Solve for x
    x = 2,556,187,131,496.76/1,764,928.60
  6. Step 6: Final answer
    x = 1,448,323.25

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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.