Home / 1,288,766.25-1,778,497.56-715,859.73

Finding the Fourth Proportional to 1,288,766.25, 1,778,497.56 and 715,859.73

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Solution

The fourth proportional to 1,288,766.25, 1,778,497.56 and 715,859.73 is: 987,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,766.25 : 1,778,497.56 = 715,859.73 : x
  2. Step 2: Convert to fraction form
    1,288,766.25/1,778,497.56 = 715,859.73/x
  3. Step 3: Cross multiply
    1,288,766.25x = 1,778,497.56 × 715,859.73
  4. Step 4: Simplify right side
    1,288,766.25x = 1,273,154,783,107.26
  5. Step 5: Solve for x
    x = 1,273,154,783,107.26/1,288,766.25
  6. Step 6: Final answer
    x = 987,886.50

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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.