Home / 1,242,161.64-1,863,636.12-443,425.50

Finding the Fourth Proportional to 1,242,161.64, 1,863,636.12 and 443,425.50

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Solution

The fourth proportional to 1,242,161.64, 1,863,636.12 and 443,425.50 is: 665,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,161.64 : 1,863,636.12 = 443,425.50 : x
  2. Step 2: Convert to fraction form
    1,242,161.64/1,863,636.12 = 443,425.50/x
  3. Step 3: Cross multiply
    1,242,161.64x = 1,863,636.12 × 443,425.50
  4. Step 4: Simplify right side
    1,242,161.64x = 826,383,778,329.06
  5. Step 5: Solve for x
    x = 826,383,778,329.06/1,242,161.64
  6. Step 6: Final answer
    x = 665,278.78

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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.