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Finding the Fourth Proportional to 6,274,656.80, 9,411,985.20 and 2,235,705.20

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Solution

The fourth proportional to 6,274,656.80, 9,411,985.20 and 2,235,705.20 is: 3,353,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,274,656.80 : 9,411,985.20 = 2,235,705.20 : x
  2. Step 2: Convert to fraction form
    6,274,656.80/9,411,985.20 = 2,235,705.20/x
  3. Step 3: Cross multiply
    6,274,656.80x = 9,411,985.20 × 2,235,705.20
  4. Step 4: Simplify right side
    6,274,656.80x = 21,042,424,253,963.04
  5. Step 5: Solve for x
    x = 21,042,424,253,963.04/6,274,656.80
  6. Step 6: Final answer
    x = 3,353,557.80

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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.