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Finding the Fourth Proportional to 1,832,728.80, 2,749,784.40 and 886,936.80

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Solution

The fourth proportional to 1,832,728.80, 2,749,784.40 and 886,936.80 is: 1,330,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,832,728.80 : 2,749,784.40 = 886,936.80 : x
  2. Step 2: Convert to fraction form
    1,832,728.80/2,749,784.40 = 886,936.80/x
  3. Step 3: Cross multiply
    1,832,728.80x = 2,749,784.40 × 886,936.80
  4. Step 4: Simplify right side
    1,832,728.80x = 2,438,884,976,425.92
  5. Step 5: Solve for x
    x = 2,438,884,976,425.92/1,832,728.80
  6. Step 6: Final answer
    x = 1,330,739.70

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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.