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Finding the Fourth Proportional to 328,401.36, 492,786.58 and 178,652.13

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Solution

The fourth proportional to 328,401.36, 492,786.58 and 178,652.13 is: 268,078.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,401.36 : 492,786.58 = 178,652.13 : x
  2. Step 2: Convert to fraction form
    328,401.36/492,786.58 = 178,652.13/x
  3. Step 3: Cross multiply
    328,401.36x = 492,786.58 × 178,652.13
  4. Step 4: Simplify right side
    328,401.36x = 88,037,372,152.42
  5. Step 5: Solve for x
    x = 88,037,372,152.42/328,401.36
  6. Step 6: Final answer
    x = 268,078.59

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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.