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Finding the Fourth Proportional to 508,740.35, 763,126.92 and 255,882.85

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Solution

The fourth proportional to 508,740.35, 763,126.92 and 255,882.85 is: 383,832.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,740.35 : 763,126.92 = 255,882.85 : x
  2. Step 2: Convert to fraction form
    508,740.35/763,126.92 = 255,882.85/x
  3. Step 3: Cross multiply
    508,740.35x = 763,126.92 × 255,882.85
  4. Step 4: Simplify right side
    508,740.35x = 195,271,089,293.51
  5. Step 5: Solve for x
    x = 195,271,089,293.51/508,740.35
  6. Step 6: Final answer
    x = 383,832.52

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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.