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Finding the Fourth Proportional to 5,985,798.20, 8,978,888.66 and 2,342,383.78

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Solution

The fourth proportional to 5,985,798.20, 8,978,888.66 and 2,342,383.78 is: 3,513,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,985,798.20 : 8,978,888.66 = 2,342,383.78 : x
  2. Step 2: Convert to fraction form
    5,985,798.20/8,978,888.66 = 2,342,383.78/x
  3. Step 3: Cross multiply
    5,985,798.20x = 8,978,888.66 × 2,342,383.78
  4. Step 4: Simplify right side
    5,985,798.20x = 21,032,003,159,609.93
  5. Step 5: Solve for x
    x = 21,032,003,159,609.93/5,985,798.20
  6. Step 6: Final answer
    x = 3,513,650.55

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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.