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Finding the Fourth Proportional to 230,111.40, 344,583.90 and 219,613.80

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Solution

The fourth proportional to 230,111.40, 344,583.90 and 219,613.80 is: 328,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,111.40 : 344,583.90 = 219,613.80 : x
  2. Step 2: Convert to fraction form
    230,111.40/344,583.90 = 219,613.80/x
  3. Step 3: Cross multiply
    230,111.40x = 344,583.90 × 219,613.80
  4. Step 4: Simplify right side
    230,111.40x = 75,675,379,697.82
  5. Step 5: Solve for x
    x = 75,675,379,697.82/230,111.40
  6. Step 6: Final answer
    x = 328,864.11

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1.5x scale

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.