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Finding the Fourth Proportional to 350,662.70, 525,994.05 and 291,540.80

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Solution

The fourth proportional to 350,662.70, 525,994.05 and 291,540.80 is: 437,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,662.70 : 525,994.05 = 291,540.80 : x
  2. Step 2: Convert to fraction form
    350,662.70/525,994.05 = 291,540.80/x
  3. Step 3: Cross multiply
    350,662.70x = 525,994.05 × 291,540.80
  4. Step 4: Simplify right side
    350,662.70x = 153,348,726,132.24
  5. Step 5: Solve for x
    x = 153,348,726,132.24/350,662.70
  6. Step 6: Final answer
    x = 437,311.20

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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.