Home / 1,286,752.80-1,930,597.20-445,389.60

Finding the Fourth Proportional to 1,286,752.80, 1,930,597.20 and 445,389.60

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Solution

The fourth proportional to 1,286,752.80, 1,930,597.20 and 445,389.60 is: 668,246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,752.80 : 1,930,597.20 = 445,389.60 : x
  2. Step 2: Convert to fraction form
    1,286,752.80/1,930,597.20 = 445,389.60/x
  3. Step 3: Cross multiply
    1,286,752.80x = 1,930,597.20 × 445,389.60
  4. Step 4: Simplify right side
    1,286,752.80x = 859,867,914,669.12
  5. Step 5: Solve for x
    x = 859,867,914,669.12/1,286,752.80
  6. Step 6: Final answer
    x = 668,246.39

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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.