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Finding the Fourth Proportional to 352,351.20, 528,526.80 and 273,619.20

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Solution

The fourth proportional to 352,351.20, 528,526.80 and 273,619.20 is: 410,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,351.20 : 528,526.80 = 273,619.20 : x
  2. Step 2: Convert to fraction form
    352,351.20/528,526.80 = 273,619.20/x
  3. Step 3: Cross multiply
    352,351.20x = 528,526.80 × 273,619.20
  4. Step 4: Simplify right side
    352,351.20x = 144,615,080,194.56
  5. Step 5: Solve for x
    x = 144,615,080,194.56/352,351.20
  6. Step 6: Final answer
    x = 410,428.80

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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.