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Finding the Fourth Proportional to 6,379,306.22, 8,803,655.16 and 3,478,855.80

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Solution

The fourth proportional to 6,379,306.22, 8,803,655.16 and 3,478,855.80 is: 4,800,936.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379,306.22 : 8,803,655.16 = 3,478,855.80 : x
  2. Step 2: Convert to fraction form
    6,379,306.22/8,803,655.16 = 3,478,855.80/x
  3. Step 3: Cross multiply
    6,379,306.22x = 8,803,655.16 × 3,478,855.80
  4. Step 4: Simplify right side
    6,379,306.22x = 30,626,646,814,565.93
  5. Step 5: Solve for x
    x = 30,626,646,814,565.93/6,379,306.22
  6. Step 6: Final answer
    x = 4,800,936.93

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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.