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Finding the Fourth Proportional to 1,209,486.03, 1,814,491.48 and 368,015.91

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Solution

The fourth proportional to 1,209,486.03, 1,814,491.48 and 368,015.91 is: 552,103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,486.03 : 1,814,491.48 = 368,015.91 : x
  2. Step 2: Convert to fraction form
    1,209,486.03/1,814,491.48 = 368,015.91/x
  3. Step 3: Cross multiply
    1,209,486.03x = 1,814,491.48 × 368,015.91
  4. Step 4: Simplify right side
    1,209,486.03x = 667,761,726,165.09
  5. Step 5: Solve for x
    x = 667,761,726,165.09/1,209,486.03
  6. Step 6: Final answer
    x = 552,103.71

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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.