Home / 2,086,935.40-3,129,992.70-666,608.68

Finding the Fourth Proportional to 2,086,935.40, 3,129,992.70 and 666,608.68

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Solution

The fourth proportional to 2,086,935.40, 3,129,992.70 and 666,608.68 is: 999,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,935.40 : 3,129,992.70 = 666,608.68 : x
  2. Step 2: Convert to fraction form
    2,086,935.40/3,129,992.70 = 666,608.68/x
  3. Step 3: Cross multiply
    2,086,935.40x = 3,129,992.70 × 666,608.68
  4. Step 4: Simplify right side
    2,086,935.40x = 2,086,480,302,156.64
  5. Step 5: Solve for x
    x = 2,086,480,302,156.64/2,086,935.40
  6. Step 6: Final answer
    x = 999,781.93

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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.