Home / 1,511,690.40-2,086,054.02-938,718.36

Finding the Fourth Proportional to 1,511,690.40, 2,086,054.02 and 938,718.36

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Solution

The fourth proportional to 1,511,690.40, 2,086,054.02 and 938,718.36 is: 1,295,382.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,690.40 : 2,086,054.02 = 938,718.36 : x
  2. Step 2: Convert to fraction form
    1,511,690.40/2,086,054.02 = 938,718.36/x
  3. Step 3: Cross multiply
    1,511,690.40x = 2,086,054.02 × 938,718.36
  4. Step 4: Simplify right side
    1,511,690.40x = 1,958,217,208,525.81
  5. Step 5: Solve for x
    x = 1,958,217,208,525.81/1,511,690.40
  6. Step 6: Final answer
    x = 1,295,382.45

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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.