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Finding the Fourth Proportional to 3,315,363.02, 4,973,044.75 and 919,207.71

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Solution

The fourth proportional to 3,315,363.02, 4,973,044.75 and 919,207.71 is: 1,378,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,363.02 : 4,973,044.75 = 919,207.71 : x
  2. Step 2: Convert to fraction form
    3,315,363.02/4,973,044.75 = 919,207.71/x
  3. Step 3: Cross multiply
    3,315,363.02x = 4,973,044.75 × 919,207.71
  4. Step 4: Simplify right side
    3,315,363.02x = 4,571,261,074,077.00
  5. Step 5: Solve for x
    x = 4,571,261,074,077.00/3,315,363.02
  6. Step 6: Final answer
    x = 1,378,811.62

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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.