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Finding the Fourth Proportional to 353,466.50, 487,216.63 and 238,708.46

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Solution

The fourth proportional to 353,466.50, 487,216.63 and 238,708.46 is: 329,034.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,466.50 : 487,216.63 = 238,708.46 : x
  2. Step 2: Convert to fraction form
    353,466.50/487,216.63 = 238,708.46/x
  3. Step 3: Cross multiply
    353,466.50x = 487,216.63 × 238,708.46
  4. Step 4: Simplify right side
    353,466.50x = 116,302,731,433.69
  5. Step 5: Solve for x
    x = 116,302,731,433.69/353,466.50
  6. Step 6: Final answer
    x = 329,034.67

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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.