Home / 868,066.08-1,302,940.80-419,103.60

Finding the Fourth Proportional to 868,066.08, 1,302,940.80 and 419,103.60

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Solution

The fourth proportional to 868,066.08, 1,302,940.80 and 419,103.60 is: 629,061.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,066.08 : 1,302,940.80 = 419,103.60 : x
  2. Step 2: Convert to fraction form
    868,066.08/1,302,940.80 = 419,103.60/x
  3. Step 3: Cross multiply
    868,066.08x = 1,302,940.80 × 419,103.60
  4. Step 4: Simplify right side
    868,066.08x = 546,067,179,866.88
  5. Step 5: Solve for x
    x = 546,067,179,866.88/868,066.08
  6. Step 6: Final answer
    x = 629,061.76

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1.5x scale

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.