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Finding the Fourth Proportional to 518,757.62, 778,486.95 and 181,801.67

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Solution

The fourth proportional to 518,757.62, 778,486.95 and 181,801.67 is: 272,825.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,757.62 : 778,486.95 = 181,801.67 : x
  2. Step 2: Convert to fraction form
    518,757.62/778,486.95 = 181,801.67/x
  3. Step 3: Cross multiply
    518,757.62x = 778,486.95 × 181,801.67
  4. Step 4: Simplify right side
    518,757.62x = 141,530,223,690.77
  5. Step 5: Solve for x
    x = 141,530,223,690.77/518,757.62
  6. Step 6: Final answer
    x = 272,825.34

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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.