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Finding the Fourth Proportional to 1,965,796.50, 2,711,758.73 and 1,352,885.19

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Solution

The fourth proportional to 1,965,796.50, 2,711,758.73 and 1,352,885.19 is: 1,866,265.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,796.50 : 2,711,758.73 = 1,352,885.19 : x
  2. Step 2: Convert to fraction form
    1,965,796.50/2,711,758.73 = 1,352,885.19/x
  3. Step 3: Cross multiply
    1,965,796.50x = 2,711,758.73 × 1,352,885.19
  4. Step 4: Simplify right side
    1,965,796.50x = 3,668,698,224,670.21
  5. Step 5: Solve for x
    x = 3,668,698,224,670.21/1,965,796.50
  6. Step 6: Final answer
    x = 1,866,265.52

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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.