Home / 769,653.97-1,153,218.87-543,911.83

Finding the Fourth Proportional to 769,653.97, 1,153,218.87 and 543,911.83

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Solution

The fourth proportional to 769,653.97, 1,153,218.87 and 543,911.83 is: 814,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,653.97 : 1,153,218.87 = 543,911.83 : x
  2. Step 2: Convert to fraction form
    769,653.97/1,153,218.87 = 543,911.83/x
  3. Step 3: Cross multiply
    769,653.97x = 1,153,218.87 × 543,911.83
  4. Step 4: Simplify right side
    769,653.97x = 627,249,383,089.19
  5. Step 5: Solve for x
    x = 627,249,383,089.19/769,653.97
  6. Step 6: Final answer
    x = 814,975.83

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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.