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Finding the Fourth Proportional to 2,894,607.97, 3,991,945.08 and 1,806,980.47

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Solution

The fourth proportional to 2,894,607.97, 3,991,945.08 and 1,806,980.47 is: 2,492,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894,607.97 : 3,991,945.08 = 1,806,980.47 : x
  2. Step 2: Convert to fraction form
    2,894,607.97/3,991,945.08 = 1,806,980.47/x
  3. Step 3: Cross multiply
    2,894,607.97x = 3,991,945.08 × 1,806,980.47
  4. Step 4: Simplify right side
    2,894,607.97x = 7,213,366,796,872.59
  5. Step 5: Solve for x
    x = 7,213,366,796,872.59/2,894,607.97
  6. Step 6: Final answer
    x = 2,492,001.29

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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.