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Finding the Fourth Proportional to 978,759.29, 1,467,664.28 and 574,083.74

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Solution

The fourth proportional to 978,759.29, 1,467,664.28 and 574,083.74 is: 860,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,759.29 : 1,467,664.28 = 574,083.74 : x
  2. Step 2: Convert to fraction form
    978,759.29/1,467,664.28 = 574,083.74/x
  3. Step 3: Cross multiply
    978,759.29x = 1,467,664.28 × 574,083.74
  4. Step 4: Simplify right side
    978,759.29x = 842,562,188,718.07
  5. Step 5: Solve for x
    x = 842,562,188,718.07/978,759.29
  6. Step 6: Final answer
    x = 860,847.20

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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.