Home / 811,648.50-1,120,078.77-453,952.50

Finding the Fourth Proportional to 811,648.50, 1,120,078.77 and 453,952.50

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Solution

The fourth proportional to 811,648.50, 1,120,078.77 and 453,952.50 is: 626,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,648.50 : 1,120,078.77 = 453,952.50 : x
  2. Step 2: Convert to fraction form
    811,648.50/1,120,078.77 = 453,952.50/x
  3. Step 3: Cross multiply
    811,648.50x = 1,120,078.77 × 453,952.50
  4. Step 4: Simplify right side
    811,648.50x = 508,462,557,838.43
  5. Step 5: Solve for x
    x = 508,462,557,838.43/811,648.50
  6. Step 6: Final answer
    x = 626,456.60

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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.