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Finding the Fourth Proportional to 1,965,814.04, 2,711,782.86 and 1,352,902.70

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Solution

The fourth proportional to 1,965,814.04, 2,711,782.86 and 1,352,902.70 is: 1,866,289.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,814.04 : 2,711,782.86 = 1,352,902.70 : x
  2. Step 2: Convert to fraction form
    1,965,814.04/2,711,782.86 = 1,352,902.70/x
  3. Step 3: Cross multiply
    1,965,814.04x = 2,711,782.86 × 1,352,902.70
  4. Step 4: Simplify right side
    1,965,814.04x = 3,668,778,353,107.72
  5. Step 5: Solve for x
    x = 3,668,778,353,107.72/1,965,814.04
  6. Step 6: Final answer
    x = 1,866,289.63

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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.