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Finding the Fourth Proportional to 5,189,730.39, 7,784,628.39 and 3,403,957.41

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Solution

The fourth proportional to 5,189,730.39, 7,784,628.39 and 3,403,957.41 is: 5,105,957.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189,730.39 : 7,784,628.39 = 3,403,957.41 : x
  2. Step 2: Convert to fraction form
    5,189,730.39/7,784,628.39 = 3,403,957.41/x
  3. Step 3: Cross multiply
    5,189,730.39x = 7,784,628.39 × 3,403,957.41
  4. Step 4: Simplify right side
    5,189,730.39x = 26,498,543,492,236.87
  5. Step 5: Solve for x
    x = 26,498,543,492,236.87/5,189,730.39
  6. Step 6: Final answer
    x = 5,105,957.63

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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.