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Finding the Fourth Proportional to 529,531.70, 730,758.23 and 287,814.24

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Solution

The fourth proportional to 529,531.70, 730,758.23 and 287,814.24 is: 397,186.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,531.70 : 730,758.23 = 287,814.24 : x
  2. Step 2: Convert to fraction form
    529,531.70/730,758.23 = 287,814.24/x
  3. Step 3: Cross multiply
    529,531.70x = 730,758.23 × 287,814.24
  4. Step 4: Simplify right side
    529,531.70x = 210,322,625,310.73
  5. Step 5: Solve for x
    x = 210,322,625,310.73/529,531.70
  6. Step 6: Final answer
    x = 397,186.09

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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.