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Finding the Fourth Proportional to 4,678,766.86, 7,008,359.99 and 3,762,999.90

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Solution

The fourth proportional to 4,678,766.86, 7,008,359.99 and 3,762,999.90 is: 5,636,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,766.86 : 7,008,359.99 = 3,762,999.90 : x
  2. Step 2: Convert to fraction form
    4,678,766.86/7,008,359.99 = 3,762,999.90/x
  3. Step 3: Cross multiply
    4,678,766.86x = 7,008,359.99 × 3,762,999.90
  4. Step 4: Simplify right side
    4,678,766.86x = 26,372,457,941,534
  5. Step 5: Solve for x
    x = 26,372,457,941,534/4,678,766.86
  6. Step 6: Final answer
    x = 5,636,625.79

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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.