Home / 1,276,740.61-1,761,813.97-718,018.54

Finding the Fourth Proportional to 1,276,740.61, 1,761,813.97 and 718,018.54

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Solution

The fourth proportional to 1,276,740.61, 1,761,813.97 and 718,018.54 is: 990,816.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,740.61 : 1,761,813.97 = 718,018.54 : x
  2. Step 2: Convert to fraction form
    1,276,740.61/1,761,813.97 = 718,018.54/x
  3. Step 3: Cross multiply
    1,276,740.61x = 1,761,813.97 × 718,018.54
  4. Step 4: Simplify right side
    1,276,740.61x = 1,265,015,102,240.48
  5. Step 5: Solve for x
    x = 1,265,015,102,240.48/1,276,740.61
  6. Step 6: Final answer
    x = 990,816.06

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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.