Home / 1,245,297.60-1,718,000.82-919,390.32

Finding the Fourth Proportional to 1,245,297.60, 1,718,000.82 and 919,390.32

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Solution

The fourth proportional to 1,245,297.60, 1,718,000.82 and 919,390.32 is: 1,268,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,297.60 : 1,718,000.82 = 919,390.32 : x
  2. Step 2: Convert to fraction form
    1,245,297.60/1,718,000.82 = 919,390.32/x
  3. Step 3: Cross multiply
    1,245,297.60x = 1,718,000.82 × 919,390.32
  4. Step 4: Simplify right side
    1,245,297.60x = 1,579,513,323,660.06
  5. Step 5: Solve for x
    x = 1,579,513,323,660.06/1,245,297.60
  6. Step 6: Final answer
    x = 1,268,382.21

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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.