Home / 1,292,562.60-1,938,930.30-439,621.80

Finding the Fourth Proportional to 1,292,562.60, 1,938,930.30 and 439,621.80

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Solution

The fourth proportional to 1,292,562.60, 1,938,930.30 and 439,621.80 is: 659,462.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,562.60 : 1,938,930.30 = 439,621.80 : x
  2. Step 2: Convert to fraction form
    1,292,562.60/1,938,930.30 = 439,621.80/x
  3. Step 3: Cross multiply
    1,292,562.60x = 1,938,930.30 × 439,621.80
  4. Step 4: Simplify right side
    1,292,562.60x = 852,396,028,560.54
  5. Step 5: Solve for x
    x = 852,396,028,560.54/1,292,562.60
  6. Step 6: Final answer
    x = 659,462.09

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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.