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Finding the Fourth Proportional to 3,353,978.67, 4,628,629.65 and 1,903,809.04

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Solution

The fourth proportional to 3,353,978.67, 4,628,629.65 and 1,903,809.04 is: 2,627,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353,978.67 : 4,628,629.65 = 1,903,809.04 : x
  2. Step 2: Convert to fraction form
    3,353,978.67/4,628,629.65 = 1,903,809.04/x
  3. Step 3: Cross multiply
    3,353,978.67x = 4,628,629.65 × 1,903,809.04
  4. Step 4: Simplify right side
    3,353,978.67x = 8,812,026,973,713.31
  5. Step 5: Solve for x
    x = 8,812,026,973,713.31/3,353,978.67
  6. Step 6: Final answer
    x = 2,627,335.43

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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.