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Finding the Fourth Proportional to 1,739,751.53, 2,400,869.93 and 965,385.40

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Solution

The fourth proportional to 1,739,751.53, 2,400,869.93 and 965,385.40 is: 1,332,238.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739,751.53 : 2,400,869.93 = 965,385.40 : x
  2. Step 2: Convert to fraction form
    1,739,751.53/2,400,869.93 = 965,385.40/x
  3. Step 3: Cross multiply
    1,739,751.53x = 2,400,869.93 × 965,385.40
  4. Step 4: Simplify right side
    1,739,751.53x = 2,317,764,777,721.02
  5. Step 5: Solve for x
    x = 2,317,764,777,721.02/1,739,751.53
  6. Step 6: Final answer
    x = 1,332,238.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.