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Finding the Fourth Proportional to 328,076.40, 492,114.60 and 222,322.80

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Solution

The fourth proportional to 328,076.40, 492,114.60 and 222,322.80 is: 333,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,076.40 : 492,114.60 = 222,322.80 : x
  2. Step 2: Convert to fraction form
    328,076.40/492,114.60 = 222,322.80/x
  3. Step 3: Cross multiply
    328,076.40x = 492,114.60 × 222,322.80
  4. Step 4: Simplify right side
    328,076.40x = 109,408,295,792.88
  5. Step 5: Solve for x
    x = 109,408,295,792.88/328,076.40
  6. Step 6: Final answer
    x = 333,484.20

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1.5x scale

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.