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Finding the Fourth Proportional to 529,510.52, 730,721.93 and 287,793.11

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Solution

The fourth proportional to 529,510.52, 730,721.93 and 287,793.11 is: 397,153.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,510.52 : 730,721.93 = 287,793.11 : x
  2. Step 2: Convert to fraction form
    529,510.52/730,721.93 = 287,793.11/x
  3. Step 3: Cross multiply
    529,510.52x = 730,721.93 × 287,793.11
  4. Step 4: Simplify right side
    529,510.52x = 210,296,733,845.78
  5. Step 5: Solve for x
    x = 210,296,733,845.78/529,510.52
  6. Step 6: Final answer
    x = 397,153.08

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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.