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Finding the Fourth Proportional to 3,332,978.10, 4,999,726.36 and 1,089,342.90

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Solution

The fourth proportional to 3,332,978.10, 4,999,726.36 and 1,089,342.90 is: 1,634,099.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332,978.10 : 4,999,726.36 = 1,089,342.90 : x
  2. Step 2: Convert to fraction form
    3,332,978.10/4,999,726.36 = 1,089,342.90/x
  3. Step 3: Cross multiply
    3,332,978.10x = 4,999,726.36 × 1,089,342.90
  4. Step 4: Simplify right side
    3,332,978.10x = 5,446,416,412,208.84
  5. Step 5: Solve for x
    x = 5,446,416,412,208.84/3,332,978.10
  6. Step 6: Final answer
    x = 1,634,099.07

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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.