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Finding the Fourth Proportional to 350,522.40, 525,092.40 and 325,639.20

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Solution

The fourth proportional to 350,522.40, 525,092.40 and 325,639.20 is: 487,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,522.40 : 525,092.40 = 325,639.20 : x
  2. Step 2: Convert to fraction form
    350,522.40/525,092.40 = 325,639.20/x
  3. Step 3: Cross multiply
    350,522.40x = 525,092.40 × 325,639.20
  4. Step 4: Simplify right side
    350,522.40x = 170,990,669,062.08
  5. Step 5: Solve for x
    x = 170,990,669,062.08/350,522.40
  6. Step 6: Final answer
    x = 487,816.67

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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.