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Finding the Fourth Proportional to 1,970,614.73, 2,719,448.69 and 1,111,175.01

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Solution

The fourth proportional to 1,970,614.73, 2,719,448.69 and 1,111,175.01 is: 1,533,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,614.73 : 2,719,448.69 = 1,111,175.01 : x
  2. Step 2: Convert to fraction form
    1,970,614.73/2,719,448.69 = 1,111,175.01/x
  3. Step 3: Cross multiply
    1,970,614.73x = 2,719,448.69 × 1,111,175.01
  4. Step 4: Simplify right side
    1,970,614.73x = 3,021,783,425,999.72
  5. Step 5: Solve for x
    x = 3,021,783,425,999.72/1,970,614.73
  6. Step 6: Final answer
    x = 1,533,421.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.