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Finding the Fourth Proportional to 365,702.16, 503,546.96 and 320,125.04

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Solution

The fourth proportional to 365,702.16, 503,546.96 and 320,125.04 is: 440,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,702.16 : 503,546.96 = 320,125.04 : x
  2. Step 2: Convert to fraction form
    365,702.16/503,546.96 = 320,125.04/x
  3. Step 3: Cross multiply
    365,702.16x = 503,546.96 × 320,125.04
  4. Step 4: Simplify right side
    365,702.16x = 161,197,990,711.88
  5. Step 5: Solve for x
    x = 161,197,990,711.88/365,702.16
  6. Step 6: Final answer
    x = 440,790.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.