Home / 855,603.20-1,283,404.80-814,131.20

Finding the Fourth Proportional to 855,603.20, 1,283,404.80 and 814,131.20

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Solution

The fourth proportional to 855,603.20, 1,283,404.80 and 814,131.20 is: 1,221,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,603.20 : 1,283,404.80 = 814,131.20 : x
  2. Step 2: Convert to fraction form
    855,603.20/1,283,404.80 = 814,131.20/x
  3. Step 3: Cross multiply
    855,603.20x = 1,283,404.80 × 814,131.20
  4. Step 4: Simplify right side
    855,603.20x = 1,044,859,889,909.76
  5. Step 5: Solve for x
    x = 1,044,859,889,909.76/855,603.20
  6. Step 6: Final answer
    x = 1,221,196.80

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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.