Home / 1,395,645.55-1,926,037.31-783,906.21

Finding the Fourth Proportional to 1,395,645.55, 1,926,037.31 and 783,906.21

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Solution

The fourth proportional to 1,395,645.55, 1,926,037.31 and 783,906.21 is: 1,081,816.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,645.55 : 1,926,037.31 = 783,906.21 : x
  2. Step 2: Convert to fraction form
    1,395,645.55/1,926,037.31 = 783,906.21/x
  3. Step 3: Cross multiply
    1,395,645.55x = 1,926,037.31 × 783,906.21
  4. Step 4: Simplify right side
    1,395,645.55x = 1,509,832,604,081.16
  5. Step 5: Solve for x
    x = 1,509,832,604,081.16/1,395,645.55
  6. Step 6: Final answer
    x = 1,081,816.66

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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.