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Finding the Fourth Proportional to 6,476,188.50, 8,928,832.68 and 5,310,339.30

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Solution

The fourth proportional to 6,476,188.50, 8,928,832.68 and 5,310,339.30 is: 7,321,456.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,476,188.50 : 8,928,832.68 = 5,310,339.30 : x
  2. Step 2: Convert to fraction form
    6,476,188.50/8,928,832.68 = 5,310,339.30/x
  3. Step 3: Cross multiply
    6,476,188.50x = 8,928,832.68 × 5,310,339.30
  4. Step 4: Simplify right side
    6,476,188.50x = 47,415,131,083,728.32
  5. Step 5: Solve for x
    x = 47,415,131,083,728.32/6,476,188.50
  6. Step 6: Final answer
    x = 7,321,456.30

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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.