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Finding the Fourth Proportional to 2,771,776.86, 3,823,978.59 and 1,625,438.94

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Solution

The fourth proportional to 2,771,776.86, 3,823,978.59 and 1,625,438.94 is: 2,242,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771,776.86 : 3,823,978.59 = 1,625,438.94 : x
  2. Step 2: Convert to fraction form
    2,771,776.86/3,823,978.59 = 1,625,438.94/x
  3. Step 3: Cross multiply
    2,771,776.86x = 3,823,978.59 × 1,625,438.94
  4. Step 4: Simplify right side
    2,771,776.86x = 6,215,643,705,912.29
  5. Step 5: Solve for x
    x = 6,215,643,705,912.29/2,771,776.86
  6. Step 6: Final answer
    x = 2,242,476.22

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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.