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Finding the Fourth Proportional to 328,290.56, 452,963.82 and 199,226.10

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Solution

The fourth proportional to 328,290.56, 452,963.82 and 199,226.10 is: 274,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,290.56 : 452,963.82 = 199,226.10 : x
  2. Step 2: Convert to fraction form
    328,290.56/452,963.82 = 199,226.10/x
  3. Step 3: Cross multiply
    328,290.56x = 452,963.82 × 199,226.10
  4. Step 4: Simplify right side
    328,290.56x = 90,242,217,745.41
  5. Step 5: Solve for x
    x = 90,242,217,745.41/328,290.56
  6. Step 6: Final answer
    x = 274,885.21

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1.5x scale

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.