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Finding the Fourth Proportional to 2,803,726.82, 3,869,370.70 and 1,580,115.22

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Solution

The fourth proportional to 2,803,726.82, 3,869,370.70 and 1,580,115.22 is: 2,180,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803,726.82 : 3,869,370.70 = 1,580,115.22 : x
  2. Step 2: Convert to fraction form
    2,803,726.82/3,869,370.70 = 1,580,115.22/x
  3. Step 3: Cross multiply
    2,803,726.82x = 3,869,370.70 × 1,580,115.22
  4. Step 4: Simplify right side
    2,803,726.82x = 6,114,051,521,268.34
  5. Step 5: Solve for x
    x = 6,114,051,521,268.34/2,803,726.82
  6. Step 6: Final answer
    x = 2,180,687.32

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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.