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Finding the Fourth Proportional to 518,114.96, 777,503.16 and 251,730.24

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Solution

The fourth proportional to 518,114.96, 777,503.16 and 251,730.24 is: 377,756.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,114.96 : 777,503.16 = 251,730.24 : x
  2. Step 2: Convert to fraction form
    518,114.96/777,503.16 = 251,730.24/x
  3. Step 3: Cross multiply
    518,114.96x = 777,503.16 × 251,730.24
  4. Step 4: Simplify right side
    518,114.96x = 195,721,057,067.56
  5. Step 5: Solve for x
    x = 195,721,057,067.56/518,114.96
  6. Step 6: Final answer
    x = 377,756.04

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1.5x scale

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.