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Finding the Fourth Proportional to 5,879,968.80, 8,819,434.80 and 1,619,757.60

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Solution

The fourth proportional to 5,879,968.80, 8,819,434.80 and 1,619,757.60 is: 2,429,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879,968.80 : 8,819,434.80 = 1,619,757.60 : x
  2. Step 2: Convert to fraction form
    5,879,968.80/8,819,434.80 = 1,619,757.60/x
  3. Step 3: Cross multiply
    5,879,968.80x = 8,819,434.80 × 1,619,757.60
  4. Step 4: Simplify right side
    5,879,968.80x = 14,285,346,545,004.48
  5. Step 5: Solve for x
    x = 14,285,346,545,004.48/5,879,968.80
  6. Step 6: Final answer
    x = 2,429,493.60

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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.