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Finding the Fourth Proportional to 5,757,615.88, 8,635,830.40 and 1,919,023.54

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Solution

The fourth proportional to 5,757,615.88, 8,635,830.40 and 1,919,023.54 is: 2,878,337.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757,615.88 : 8,635,830.40 = 1,919,023.54 : x
  2. Step 2: Convert to fraction form
    5,757,615.88/8,635,830.40 = 1,919,023.54/x
  3. Step 3: Cross multiply
    5,757,615.88x = 8,635,830.40 × 1,919,023.54
  4. Step 4: Simplify right side
    5,757,615.88x = 16,572,361,825,047.62
  5. Step 5: Solve for x
    x = 16,572,361,825,047.62/5,757,615.88
  6. Step 6: Final answer
    x = 2,878,337.52

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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.