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Finding the Fourth Proportional to 347,177.61, 520,762.65 and 263,451.96

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Solution

The fourth proportional to 347,177.61, 520,762.65 and 263,451.96 is: 395,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,177.61 : 520,762.65 = 263,451.96 : x
  2. Step 2: Convert to fraction form
    347,177.61/520,762.65 = 263,451.96/x
  3. Step 3: Cross multiply
    347,177.61x = 520,762.65 × 263,451.96
  4. Step 4: Simplify right side
    347,177.61x = 137,195,940,837.29
  5. Step 5: Solve for x
    x = 137,195,940,837.29/347,177.61
  6. Step 6: Final answer
    x = 395,175.08

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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.