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Finding the Fourth Proportional to 357,953.70, 535,762.25 and 263,158.80

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Solution

The fourth proportional to 357,953.70, 535,762.25 and 263,158.80 is: 393,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,953.70 : 535,762.25 = 263,158.80 : x
  2. Step 2: Convert to fraction form
    357,953.70/535,762.25 = 263,158.80/x
  3. Step 3: Cross multiply
    357,953.70x = 535,762.25 × 263,158.80
  4. Step 4: Simplify right side
    357,953.70x = 140,990,550,795.30
  5. Step 5: Solve for x
    x = 140,990,550,795.30/357,953.70
  6. Step 6: Final answer
    x = 393,879.29

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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.