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Finding the Fourth Proportional to 350,055.20, 525,082.80 and 331,623.20

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Solution

The fourth proportional to 350,055.20, 525,082.80 and 331,623.20 is: 497,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,055.20 : 525,082.80 = 331,623.20 : x
  2. Step 2: Convert to fraction form
    350,055.20/525,082.80 = 331,623.20/x
  3. Step 3: Cross multiply
    350,055.20x = 525,082.80 × 331,623.20
  4. Step 4: Simplify right side
    350,055.20x = 174,129,638,400.96
  5. Step 5: Solve for x
    x = 174,129,638,400.96/350,055.20
  6. Step 6: Final answer
    x = 497,434.80

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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.