Home / 1,173,965.30-1,620,078.09-664,766.90

Finding the Fourth Proportional to 1,173,965.30, 1,620,078.09 and 664,766.90

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Solution

The fourth proportional to 1,173,965.30, 1,620,078.09 and 664,766.90 is: 917,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,965.30 : 1,620,078.09 = 664,766.90 : x
  2. Step 2: Convert to fraction form
    1,173,965.30/1,620,078.09 = 664,766.90/x
  3. Step 3: Cross multiply
    1,173,965.30x = 1,620,078.09 × 664,766.90
  4. Step 4: Simplify right side
    1,173,965.30x = 1,076,974,289,647.22
  5. Step 5: Solve for x
    x = 1,076,974,289,647.22/1,173,965.30
  6. Step 6: Final answer
    x = 917,381.71

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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.