Home / 2,129,118-2,938,144.89-1,211,327.38

Finding the Fourth Proportional to 2,129,118, 2,938,144.89 and 1,211,327.38

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Solution

The fourth proportional to 2,129,118, 2,938,144.89 and 1,211,327.38 is: 1,671,610.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,118 : 2,938,144.89 = 1,211,327.38 : x
  2. Step 2: Convert to fraction form
    2,129,118/2,938,144.89 = 1,211,327.38/x
  3. Step 3: Cross multiply
    2,129,118x = 2,938,144.89 × 1,211,327.38
  4. Step 4: Simplify right side
    2,129,118x = 3,559,055,351,664.09
  5. Step 5: Solve for x
    x = 3,559,055,351,664.09/2,129,118
  6. Step 6: Final answer
    x = 1,671,610.19

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1.5x scale

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.