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Finding the Fourth Proportional to 1,935,844.80, 2,900,311.20 and 936,369.60

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Solution

The fourth proportional to 1,935,844.80, 2,900,311.20 and 936,369.60 is: 1,402,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,844.80 : 2,900,311.20 = 936,369.60 : x
  2. Step 2: Convert to fraction form
    1,935,844.80/2,900,311.20 = 936,369.60/x
  3. Step 3: Cross multiply
    1,935,844.80x = 2,900,311.20 × 936,369.60
  4. Step 4: Simplify right side
    1,935,844.80x = 2,715,763,238,219.52
  5. Step 5: Solve for x
    x = 2,715,763,238,219.52/1,935,844.80
  6. Step 6: Final answer
    x = 1,402,882.73

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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.