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Finding the Fourth Proportional to 1,218,778.22, 1,828,165.10 and 365,849.04

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Solution

The fourth proportional to 1,218,778.22, 1,828,165.10 and 365,849.04 is: 548,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,778.22 : 1,828,165.10 = 365,849.04 : x
  2. Step 2: Convert to fraction form
    1,218,778.22/1,828,165.10 = 365,849.04/x
  3. Step 3: Cross multiply
    1,218,778.22x = 1,828,165.10 × 365,849.04
  4. Step 4: Simplify right side
    1,218,778.22x = 668,832,446,796.50
  5. Step 5: Solve for x
    x = 668,832,446,796.50/1,218,778.22
  6. Step 6: Final answer
    x = 548,772.89

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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.