Home / 819,307.47-1,228,965.09-250,687.66

Finding the Fourth Proportional to 819,307.47, 1,228,965.09 and 250,687.66

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Solution

The fourth proportional to 819,307.47, 1,228,965.09 and 250,687.66 is: 376,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,307.47 : 1,228,965.09 = 250,687.66 : x
  2. Step 2: Convert to fraction form
    819,307.47/1,228,965.09 = 250,687.66/x
  3. Step 3: Cross multiply
    819,307.47x = 1,228,965.09 × 250,687.66
  4. Step 4: Simplify right side
    819,307.47x = 308,086,385,557.17
  5. Step 5: Solve for x
    x = 308,086,385,557.17/819,307.47
  6. Step 6: Final answer
    x = 376,032.68

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1.5x scale

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.