Home / 1,282,188.80-1,768,864.56-772,601.60

Finding the Fourth Proportional to 1,282,188.80, 1,768,864.56 and 772,601.60

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Solution

The fourth proportional to 1,282,188.80, 1,768,864.56 and 772,601.60 is: 1,065,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,188.80 : 1,768,864.56 = 772,601.60 : x
  2. Step 2: Convert to fraction form
    1,282,188.80/1,768,864.56 = 772,601.60/x
  3. Step 3: Cross multiply
    1,282,188.80x = 1,768,864.56 × 772,601.60
  4. Step 4: Simplify right side
    1,282,188.80x = 1,366,627,589,239.30
  5. Step 5: Solve for x
    x = 1,366,627,589,239.30/1,282,188.80
  6. Step 6: Final answer
    x = 1,065,855.19

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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.