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Finding the Fourth Proportional to 393,725.68, 589,702.17 and 275,922.93

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Solution

The fourth proportional to 393,725.68, 589,702.17 and 275,922.93 is: 413,263.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,725.68 : 589,702.17 = 275,922.93 : x
  2. Step 2: Convert to fraction form
    393,725.68/589,702.17 = 275,922.93/x
  3. Step 3: Cross multiply
    393,725.68x = 589,702.17 × 275,922.93
  4. Step 4: Simplify right side
    393,725.68x = 162,712,350,573.76
  5. Step 5: Solve for x
    x = 162,712,350,573.76/393,725.68
  6. Step 6: Final answer
    x = 413,263.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.