Home / 1,328,109.60-1,991,905.20-441,645.60

Finding the Fourth Proportional to 1,328,109.60, 1,991,905.20 and 441,645.60

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Solution

The fourth proportional to 1,328,109.60, 1,991,905.20 and 441,645.60 is: 662,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,109.60 : 1,991,905.20 = 441,645.60 : x
  2. Step 2: Convert to fraction form
    1,328,109.60/1,991,905.20 = 441,645.60/x
  3. Step 3: Cross multiply
    1,328,109.60x = 1,991,905.20 × 441,645.60
  4. Step 4: Simplify right side
    1,328,109.60x = 879,716,167,197.12
  5. Step 5: Solve for x
    x = 879,716,167,197.12/1,328,109.60
  6. Step 6: Final answer
    x = 662,382.21

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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.