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Finding the Fourth Proportional to 529,594.70, 730,825.15 and 287,871.06

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Solution

The fourth proportional to 529,594.70, 730,825.15 and 287,871.06 is: 397,253.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,594.70 : 730,825.15 = 287,871.06 : x
  2. Step 2: Convert to fraction form
    529,594.70/730,825.15 = 287,871.06/x
  3. Step 3: Cross multiply
    529,594.70x = 730,825.15 × 287,871.06
  4. Step 4: Simplify right side
    529,594.70x = 210,383,410,605.16
  5. Step 5: Solve for x
    x = 210,383,410,605.16/529,594.70
  6. Step 6: Final answer
    x = 397,253.62

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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.