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Finding the Fourth Proportional to 326,381.98, 450,439.50 and 219,175.24

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Solution

The fourth proportional to 326,381.98, 450,439.50 and 219,175.24 is: 302,483.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,381.98 : 450,439.50 = 219,175.24 : x
  2. Step 2: Convert to fraction form
    326,381.98/450,439.50 = 219,175.24/x
  3. Step 3: Cross multiply
    326,381.98x = 450,439.50 × 219,175.24
  4. Step 4: Simplify right side
    326,381.98x = 98,725,185,517.98
  5. Step 5: Solve for x
    x = 98,725,185,517.98/326,381.98
  6. Step 6: Final answer
    x = 302,483.57

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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.