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Finding the Fourth Proportional to 395,227.91, 545,728.91 and 365,002.17

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Solution

The fourth proportional to 395,227.91, 545,728.91 and 365,002.17 is: 503,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,227.91 : 545,728.91 = 365,002.17 : x
  2. Step 2: Convert to fraction form
    395,227.91/545,728.91 = 365,002.17/x
  3. Step 3: Cross multiply
    395,227.91x = 545,728.91 × 365,002.17
  4. Step 4: Simplify right side
    395,227.91x = 199,192,234,556.72
  5. Step 5: Solve for x
    x = 199,192,234,556.72/395,227.91
  6. Step 6: Final answer
    x = 503,993.35

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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.