Home / 3,072,289.80-4,238,748.18-1,985,201.76

Finding the Fourth Proportional to 3,072,289.80, 4,238,748.18 and 1,985,201.76

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Solution

The fourth proportional to 3,072,289.80, 4,238,748.18 and 1,985,201.76 is: 2,738,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072,289.80 : 4,238,748.18 = 1,985,201.76 : x
  2. Step 2: Convert to fraction form
    3,072,289.80/4,238,748.18 = 1,985,201.76/x
  3. Step 3: Cross multiply
    3,072,289.80x = 4,238,748.18 × 1,985,201.76
  4. Step 4: Simplify right side
    3,072,289.80x = 8,414,770,347,132.80
  5. Step 5: Solve for x
    x = 8,414,770,347,132.80/3,072,289.80
  6. Step 6: Final answer
    x = 2,738,924.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.