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Finding the Fourth Proportional to 6,369,329.95, 8,790,401.42 and 3,791,018.95

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Solution

The fourth proportional to 6,369,329.95, 8,790,401.42 and 3,791,018.95 is: 5,232,038.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369,329.95 : 8,790,401.42 = 3,791,018.95 : x
  2. Step 2: Convert to fraction form
    6,369,329.95/8,790,401.42 = 3,791,018.95/x
  3. Step 3: Cross multiply
    6,369,329.95x = 8,790,401.42 × 3,791,018.95
  4. Step 4: Simplify right side
    6,369,329.95x = 33,324,578,361,326.91
  5. Step 5: Solve for x
    x = 33,324,578,361,326.91/6,369,329.95
  6. Step 6: Final answer
    x = 5,232,038.32

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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.