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Finding the Fourth Proportional to 350,556.80, 525,835.20 and 329,820.80

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Solution

The fourth proportional to 350,556.80, 525,835.20 and 329,820.80 is: 494,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,556.80 : 525,835.20 = 329,820.80 : x
  2. Step 2: Convert to fraction form
    350,556.80/525,835.20 = 329,820.80/x
  3. Step 3: Cross multiply
    350,556.80x = 525,835.20 × 329,820.80
  4. Step 4: Simplify right side
    350,556.80x = 173,431,386,332.16
  5. Step 5: Solve for x
    x = 173,431,386,332.16/350,556.80
  6. Step 6: Final answer
    x = 494,731.20

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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.