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Finding the Fourth Proportional to 978,693.54, 1,467,301.80 and 641,819.01

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Solution

The fourth proportional to 978,693.54, 1,467,301.80 and 641,819.01 is: 962,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,693.54 : 1,467,301.80 = 641,819.01 : x
  2. Step 2: Convert to fraction form
    978,693.54/1,467,301.80 = 641,819.01/x
  3. Step 3: Cross multiply
    978,693.54x = 1,467,301.80 × 641,819.01
  4. Step 4: Simplify right side
    978,693.54x = 941,742,188,647.22
  5. Step 5: Solve for x
    x = 941,742,188,647.22/978,693.54
  6. Step 6: Final answer
    x = 962,244.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.