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Finding the Fourth Proportional to 5,728,730.65, 7,905,490.65 and 3,150,411.43

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Solution

The fourth proportional to 5,728,730.65, 7,905,490.65 and 3,150,411.43 is: 4,347,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728,730.65 : 7,905,490.65 = 3,150,411.43 : x
  2. Step 2: Convert to fraction form
    5,728,730.65/7,905,490.65 = 3,150,411.43/x
  3. Step 3: Cross multiply
    5,728,730.65x = 7,905,490.65 × 3,150,411.43
  4. Step 4: Simplify right side
    5,728,730.65x = 24,905,548,103,518.13
  5. Step 5: Solve for x
    x = 24,905,548,103,518.13/5,728,730.65
  6. Step 6: Final answer
    x = 4,347,481.08

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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.