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Finding the Fourth Proportional to 4,786,186.62, 7,173,292.87 and 2,390,699.91

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Solution

The fourth proportional to 4,786,186.62, 7,173,292.87 and 2,390,699.91 is: 3,583,059.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786,186.62 : 7,173,292.87 = 2,390,699.91 : x
  2. Step 2: Convert to fraction form
    4,786,186.62/7,173,292.87 = 2,390,699.91/x
  3. Step 3: Cross multiply
    4,786,186.62x = 7,173,292.87 × 2,390,699.91
  4. Step 4: Simplify right side
    4,786,186.62x = 17,149,190,648,600.86
  5. Step 5: Solve for x
    x = 17,149,190,648,600.86/4,786,186.62
  6. Step 6: Final answer
    x = 3,583,059.33

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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.