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Finding the Fourth Proportional to 375,335.56, 561,590.80 and 263,234.60

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Solution

The fourth proportional to 375,335.56, 561,590.80 and 263,234.60 is: 393,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,335.56 : 561,590.80 = 263,234.60 : x
  2. Step 2: Convert to fraction form
    375,335.56/561,590.80 = 263,234.60/x
  3. Step 3: Cross multiply
    375,335.56x = 561,590.80 × 263,234.60
  4. Step 4: Simplify right side
    375,335.56x = 147,830,129,601.68
  5. Step 5: Solve for x
    x = 147,830,129,601.68/375,335.56
  6. Step 6: Final answer
    x = 393,861.24

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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.