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Finding the Fourth Proportional to 966,661.80, 1,448,610.30 and 711,954.60

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Solution

The fourth proportional to 966,661.80, 1,448,610.30 and 711,954.60 is: 1,066,913.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,661.80 : 1,448,610.30 = 711,954.60 : x
  2. Step 2: Convert to fraction form
    966,661.80/1,448,610.30 = 711,954.60/x
  3. Step 3: Cross multiply
    966,661.80x = 1,448,610.30 × 711,954.60
  4. Step 4: Simplify right side
    966,661.80x = 1,031,344,766,692.38
  5. Step 5: Solve for x
    x = 1,031,344,766,692.38/966,661.80
  6. Step 6: Final answer
    x = 1,066,913.75

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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.