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Finding the Fourth Proportional to 978,549.55, 1,467,824.33 and 978,549.55

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Solution

The fourth proportional to 978,549.55, 1,467,824.33 and 978,549.55 is: 1,467,824.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,549.55 : 1,467,824.33 = 978,549.55 : x
  2. Step 2: Convert to fraction form
    978,549.55/1,467,824.33 = 978,549.55/x
  3. Step 3: Cross multiply
    978,549.55x = 1,467,824.33 × 978,549.55
  4. Step 4: Simplify right side
    978,549.55x = 1,436,338,837,600.55
  5. Step 5: Solve for x
    x = 1,436,338,837,600.55/978,549.55
  6. Step 6: Final answer
    x = 1,467,824.33

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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.