Home / 1,089,939.71-1,633,848.85-521,173.91

Finding the Fourth Proportional to 1,089,939.71, 1,633,848.85 and 521,173.91

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Solution

The fourth proportional to 1,089,939.71, 1,633,848.85 and 521,173.91 is: 781,253.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,939.71 : 1,633,848.85 = 521,173.91 : x
  2. Step 2: Convert to fraction form
    1,089,939.71/1,633,848.85 = 521,173.91/x
  3. Step 3: Cross multiply
    1,089,939.71x = 1,633,848.85 × 521,173.91
  4. Step 4: Simplify right side
    1,089,939.71x = 851,519,396,285.19
  5. Step 5: Solve for x
    x = 851,519,396,285.19/1,089,939.71
  6. Step 6: Final answer
    x = 781,253.67

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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.