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Finding the Fourth Proportional to 6,393,151.47, 8,822,679.09 and 3,492,730.20

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Solution

The fourth proportional to 6,393,151.47, 8,822,679.09 and 3,492,730.20 is: 4,820,038.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,393,151.47 : 8,822,679.09 = 3,492,730.20 : x
  2. Step 2: Convert to fraction form
    6,393,151.47/8,822,679.09 = 3,492,730.20/x
  3. Step 3: Cross multiply
    6,393,151.47x = 8,822,679.09 × 3,492,730.20
  4. Step 4: Simplify right side
    6,393,151.47x = 30,815,237,685,087.87
  5. Step 5: Solve for x
    x = 30,815,237,685,087.87/6,393,151.47
  6. Step 6: Final answer
    x = 4,820,038.73

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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.