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Finding the Fourth Proportional to 347,615.20, 520,501.20 and 273,887.20

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Solution

The fourth proportional to 347,615.20, 520,501.20 and 273,887.20 is: 410,104.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,615.20 : 520,501.20 = 273,887.20 : x
  2. Step 2: Convert to fraction form
    347,615.20/520,501.20 = 273,887.20/x
  3. Step 3: Cross multiply
    347,615.20x = 520,501.20 × 273,887.20
  4. Step 4: Simplify right side
    347,615.20x = 142,558,616,264.64
  5. Step 5: Solve for x
    x = 142,558,616,264.64/347,615.20
  6. Step 6: Final answer
    x = 410,104.67

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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.