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Finding the Fourth Proportional to 519,832, 717,370.32 and 281,368

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Solution

The fourth proportional to 519,832, 717,370.32 and 281,368 is: 388,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,832 : 717,370.32 = 281,368 : x
  2. Step 2: Convert to fraction form
    519,832/717,370.32 = 281,368/x
  3. Step 3: Cross multiply
    519,832x = 717,370.32 × 281,368
  4. Step 4: Simplify right side
    519,832x = 201,845,052,197.76
  5. Step 5: Solve for x
    x = 201,845,052,197.76/519,832
  6. Step 6: Final answer
    x = 388,289.01

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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.