Home / 2,177,936.32-3,005,428.66-1,211,045.86

Finding the Fourth Proportional to 2,177,936.32, 3,005,428.66 and 1,211,045.86

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Solution

The fourth proportional to 2,177,936.32, 3,005,428.66 and 1,211,045.86 is: 1,671,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177,936.32 : 3,005,428.66 = 1,211,045.86 : x
  2. Step 2: Convert to fraction form
    2,177,936.32/3,005,428.66 = 1,211,045.86/x
  3. Step 3: Cross multiply
    2,177,936.32x = 3,005,428.66 × 1,211,045.86
  4. Step 4: Simplify right side
    2,177,936.32x = 3,639,711,936,218.35
  5. Step 5: Solve for x
    x = 3,639,711,936,218.35/2,177,936.32
  6. Step 6: Final answer
    x = 1,671,174.64

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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.