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Finding the Fourth Proportional to 6,798,678.40, 10,198,478.40 and 2,311,292.80

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Solution

The fourth proportional to 6,798,678.40, 10,198,478.40 and 2,311,292.80 is: 3,467,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,798,678.40 : 10,198,478.40 = 2,311,292.80 : x
  2. Step 2: Convert to fraction form
    6,798,678.40/10,198,478.40 = 2,311,292.80/x
  3. Step 3: Cross multiply
    6,798,678.40x = 10,198,478.40 × 2,311,292.80
  4. Step 4: Simplify right side
    6,798,678.40x = 23,571,669,696,875.52
  5. Step 5: Solve for x
    x = 23,571,669,696,875.52/6,798,678.40
  6. Step 6: Final answer
    x = 3,467,095.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.