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Finding the Fourth Proportional to 5,791,231.61, 7,985,314.90 and 3,695,254.55

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Solution

The fourth proportional to 5,791,231.61, 7,985,314.90 and 3,695,254.55 is: 5,095,249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791,231.61 : 7,985,314.90 = 3,695,254.55 : x
  2. Step 2: Convert to fraction form
    5,791,231.61/7,985,314.90 = 3,695,254.55/x
  3. Step 3: Cross multiply
    5,791,231.61x = 7,985,314.90 × 3,695,254.55
  4. Step 4: Simplify right side
    5,791,231.61x = 29,507,771,217,407.79
  5. Step 5: Solve for x
    x = 29,507,771,217,407.79/5,791,231.61
  6. Step 6: Final answer
    x = 5,095,249.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.