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Finding the Fourth Proportional to 439,573.50, 606,611.43 and 238,369.66

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Solution

The fourth proportional to 439,573.50, 606,611.43 and 238,369.66 is: 328,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,573.50 : 606,611.43 = 238,369.66 : x
  2. Step 2: Convert to fraction form
    439,573.50/606,611.43 = 238,369.66/x
  3. Step 3: Cross multiply
    439,573.50x = 606,611.43 × 238,369.66
  4. Step 4: Simplify right side
    439,573.50x = 144,597,760,321.21
  5. Step 5: Solve for x
    x = 144,597,760,321.21/439,573.50
  6. Step 6: Final answer
    x = 328,950.13

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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.