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Finding the Fourth Proportional to 328,060.80, 492,091.20 and 248,745.60

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Solution

The fourth proportional to 328,060.80, 492,091.20 and 248,745.60 is: 373,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,060.80 : 492,091.20 = 248,745.60 : x
  2. Step 2: Convert to fraction form
    328,060.80/492,091.20 = 248,745.60/x
  3. Step 3: Cross multiply
    328,060.80x = 492,091.20 × 248,745.60
  4. Step 4: Simplify right side
    328,060.80x = 122,405,520,798.72
  5. Step 5: Solve for x
    x = 122,405,520,798.72/328,060.80
  6. Step 6: Final answer
    x = 373,118.40

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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.