Home / 627,305.49-940,976.69-153,990.86

Finding the Fourth Proportional to 627,305.49, 940,976.69 and 153,990.86

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Solution

The fourth proportional to 627,305.49, 940,976.69 and 153,990.86 is: 230,990.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,305.49 : 940,976.69 = 153,990.86 : x
  2. Step 2: Convert to fraction form
    627,305.49/940,976.69 = 153,990.86/x
  3. Step 3: Cross multiply
    627,305.49x = 940,976.69 × 153,990.86
  4. Step 4: Simplify right side
    627,305.49x = 144,901,804,258.22
  5. Step 5: Solve for x
    x = 144,901,804,258.22/627,305.49
  6. Step 6: Final answer
    x = 230,990.81

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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.