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Finding the Fourth Proportional to 443,682.45, 665,486.28 and 190,952.73

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Solution

The fourth proportional to 443,682.45, 665,486.28 and 190,952.73 is: 286,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,682.45 : 665,486.28 = 190,952.73 : x
  2. Step 2: Convert to fraction form
    443,682.45/665,486.28 = 190,952.73/x
  3. Step 3: Cross multiply
    443,682.45x = 665,486.28 × 190,952.73
  4. Step 4: Simplify right side
    443,682.45x = 127,076,421,943.54
  5. Step 5: Solve for x
    x = 127,076,421,943.54/443,682.45
  6. Step 6: Final answer
    x = 286,413.00

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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.