Home / 1,393,808.60-1,923,222.68-820,962.80

Finding the Fourth Proportional to 1,393,808.60, 1,923,222.68 and 820,962.80

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Solution

The fourth proportional to 1,393,808.60, 1,923,222.68 and 820,962.80 is: 1,132,791.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,808.60 : 1,923,222.68 = 820,962.80 : x
  2. Step 2: Convert to fraction form
    1,393,808.60/1,923,222.68 = 820,962.80/x
  3. Step 3: Cross multiply
    1,393,808.60x = 1,923,222.68 × 820,962.80
  4. Step 4: Simplify right side
    1,393,808.60x = 1,578,894,276,396.30
  5. Step 5: Solve for x
    x = 1,578,894,276,396.30/1,393,808.60
  6. Step 6: Final answer
    x = 1,132,791.31

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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.