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Finding the Fourth Proportional to 357,952.70, 535,760.75 and 263,157.80

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Solution

The fourth proportional to 357,952.70, 535,760.75 and 263,157.80 is: 393,877.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,952.70 : 535,760.75 = 263,157.80 : x
  2. Step 2: Convert to fraction form
    357,952.70/535,760.75 = 263,157.80/x
  3. Step 3: Cross multiply
    357,952.70x = 535,760.75 × 263,157.80
  4. Step 4: Simplify right side
    357,952.70x = 140,989,618,275.44
  5. Step 5: Solve for x
    x = 140,989,618,275.44/357,952.70
  6. Step 6: Final answer
    x = 393,877.79

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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.