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Finding the Fourth Proportional to 1,965,763.13, 2,712,840.41 and 1,106,379.05

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Solution

The fourth proportional to 1,965,763.13, 2,712,840.41 and 1,106,379.05 is: 1,526,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,763.13 : 2,712,840.41 = 1,106,379.05 : x
  2. Step 2: Convert to fraction form
    1,965,763.13/2,712,840.41 = 1,106,379.05/x
  3. Step 3: Cross multiply
    1,965,763.13x = 2,712,840.41 × 1,106,379.05
  4. Step 4: Simplify right side
    1,965,763.13x = 3,001,429,790,085.52
  5. Step 5: Solve for x
    x = 3,001,429,790,085.52/1,965,763.13
  6. Step 6: Final answer
    x = 1,526,852.22

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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.