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Finding the Fourth Proportional to 320,999.60, 481,038.60 and 236,097.20

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Solution

The fourth proportional to 320,999.60, 481,038.60 and 236,097.20 is: 353,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,999.60 : 481,038.60 = 236,097.20 : x
  2. Step 2: Convert to fraction form
    320,999.60/481,038.60 = 236,097.20/x
  3. Step 3: Cross multiply
    320,999.60x = 481,038.60 × 236,097.20
  4. Step 4: Simplify right side
    320,999.60x = 113,571,866,551.92
  5. Step 5: Solve for x
    x = 113,571,866,551.92/320,999.60
  6. Step 6: Final answer
    x = 353,806.88

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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.