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Finding the Fourth Proportional to 529,076.01, 730,126.97 and 287,362.61

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Solution

The fourth proportional to 529,076.01, 730,126.97 and 287,362.61 is: 396,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,076.01 : 730,126.97 = 287,362.61 : x
  2. Step 2: Convert to fraction form
    529,076.01/730,126.97 = 287,362.61/x
  3. Step 3: Cross multiply
    529,076.01x = 730,126.97 × 287,362.61
  4. Step 4: Simplify right side
    529,076.01x = 209,811,191,730.59
  5. Step 5: Solve for x
    x = 209,811,191,730.59/529,076.01
  6. Step 6: Final answer
    x = 396,561.53

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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.