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Finding the Fourth Proportional to 365,703.16, 503,548.34 and 320,126.04

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Solution

The fourth proportional to 365,703.16, 503,548.34 and 320,126.04 is: 440,791.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,703.16 : 503,548.34 = 320,126.04 : x
  2. Step 2: Convert to fraction form
    365,703.16/503,548.34 = 320,126.04/x
  3. Step 3: Cross multiply
    365,703.16x = 503,548.34 × 320,126.04
  4. Step 4: Simplify right side
    365,703.16x = 161,198,936,032.77
  5. Step 5: Solve for x
    x = 161,198,936,032.77/365,703.16
  6. Step 6: Final answer
    x = 440,791.75

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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.