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Finding the Fourth Proportional to 293,415.40, 440,123.10 and 273,586.60

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Solution

The fourth proportional to 293,415.40, 440,123.10 and 273,586.60 is: 410,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,415.40 : 440,123.10 = 273,586.60 : x
  2. Step 2: Convert to fraction form
    293,415.40/440,123.10 = 273,586.60/x
  3. Step 3: Cross multiply
    293,415.40x = 440,123.10 × 273,586.60
  4. Step 4: Simplify right side
    293,415.40x = 120,411,782,510.46
  5. Step 5: Solve for x
    x = 120,411,782,510.46/293,415.40
  6. Step 6: Final answer
    x = 410,379.90

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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.