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Finding the Fourth Proportional to 436,137.60, 654,206.40 and 404,644.80

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Solution

The fourth proportional to 436,137.60, 654,206.40 and 404,644.80 is: 606,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,137.60 : 654,206.40 = 404,644.80 : x
  2. Step 2: Convert to fraction form
    436,137.60/654,206.40 = 404,644.80/x
  3. Step 3: Cross multiply
    436,137.60x = 654,206.40 × 404,644.80
  4. Step 4: Simplify right side
    436,137.60x = 264,721,217,886.72
  5. Step 5: Solve for x
    x = 264,721,217,886.72/436,137.60
  6. Step 6: Final answer
    x = 606,967.20

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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.