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Finding the Fourth Proportional to 436,556.83, 654,835.42 and 196,390.20

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Solution

The fourth proportional to 436,556.83, 654,835.42 and 196,390.20 is: 294,585.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,556.83 : 654,835.42 = 196,390.20 : x
  2. Step 2: Convert to fraction form
    436,556.83/654,835.42 = 196,390.20/x
  3. Step 3: Cross multiply
    436,556.83x = 654,835.42 × 196,390.20
  4. Step 4: Simplify right side
    436,556.83x = 128,603,261,802.01
  5. Step 5: Solve for x
    x = 128,603,261,802.01/436,556.83
  6. Step 6: Final answer
    x = 294,585.39

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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.