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Finding the Fourth Proportional to 508,730.63, 763,112.24 and 255,873.11

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Solution

The fourth proportional to 508,730.63, 763,112.24 and 255,873.11 is: 383,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,730.63 : 763,112.24 = 255,873.11 : x
  2. Step 2: Convert to fraction form
    508,730.63/763,112.24 = 255,873.11/x
  3. Step 3: Cross multiply
    508,730.63x = 763,112.24 × 255,873.11
  4. Step 4: Simplify right side
    508,730.63x = 195,259,897,032.94
  5. Step 5: Solve for x
    x = 195,259,897,032.94/508,730.63
  6. Step 6: Final answer
    x = 383,817.85

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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.