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Finding the Fourth Proportional to 413,898.10, 620,847.15 and 361,410.10

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Solution

The fourth proportional to 413,898.10, 620,847.15 and 361,410.10 is: 542,115.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,898.10 : 620,847.15 = 361,410.10 : x
  2. Step 2: Convert to fraction form
    413,898.10/620,847.15 = 361,410.10/x
  3. Step 3: Cross multiply
    413,898.10x = 620,847.15 × 361,410.10
  4. Step 4: Simplify right side
    413,898.10x = 224,380,430,566.22
  5. Step 5: Solve for x
    x = 224,380,430,566.22/413,898.10
  6. Step 6: Final answer
    x = 542,115.15

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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.