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Finding the Fourth Proportional to 388,356.96, 582,549.78 and 175,083.18

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Solution

The fourth proportional to 388,356.96, 582,549.78 and 175,083.18 is: 262,631.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,356.96 : 582,549.78 = 175,083.18 : x
  2. Step 2: Convert to fraction form
    388,356.96/582,549.78 = 175,083.18/x
  3. Step 3: Cross multiply
    388,356.96x = 582,549.78 × 175,083.18
  4. Step 4: Simplify right side
    388,356.96x = 101,994,667,990.70
  5. Step 5: Solve for x
    x = 101,994,667,990.70/388,356.96
  6. Step 6: Final answer
    x = 262,631.23

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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.