Home / 1,187,738.40-1,778,983.20-626,116.80

Finding the Fourth Proportional to 1,187,738.40, 1,778,983.20 and 626,116.80

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Solution

The fourth proportional to 1,187,738.40, 1,778,983.20 and 626,116.80 is: 937,791.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,738.40 : 1,778,983.20 = 626,116.80 : x
  2. Step 2: Convert to fraction form
    1,187,738.40/1,778,983.20 = 626,116.80/x
  3. Step 3: Cross multiply
    1,187,738.40x = 1,778,983.20 × 626,116.80
  4. Step 4: Simplify right side
    1,187,738.40x = 1,113,851,268,437.76
  5. Step 5: Solve for x
    x = 1,113,851,268,437.76/1,187,738.40
  6. Step 6: Final answer
    x = 937,791.75

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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.