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Finding the Fourth Proportional to 323,312.72, 446,185.40 and 180,072.80

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Solution

The fourth proportional to 323,312.72, 446,185.40 and 180,072.80 is: 248,508.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,312.72 : 446,185.40 = 180,072.80 : x
  2. Step 2: Convert to fraction form
    323,312.72/446,185.40 = 180,072.80/x
  3. Step 3: Cross multiply
    323,312.72x = 446,185.40 × 180,072.80
  4. Step 4: Simplify right side
    323,312.72x = 80,345,854,297.12
  5. Step 5: Solve for x
    x = 80,345,854,297.12/323,312.72
  6. Step 6: Final answer
    x = 248,508.18

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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.