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Finding the Fourth Proportional to 404,418.20, 606,627.30 and 325,686.20

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Solution

The fourth proportional to 404,418.20, 606,627.30 and 325,686.20 is: 488,529.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,418.20 : 606,627.30 = 325,686.20 : x
  2. Step 2: Convert to fraction form
    404,418.20/606,627.30 = 325,686.20/x
  3. Step 3: Cross multiply
    404,418.20x = 606,627.30 × 325,686.20
  4. Step 4: Simplify right side
    404,418.20x = 197,570,140,153.26
  5. Step 5: Solve for x
    x = 197,570,140,153.26/404,418.20
  6. Step 6: Final answer
    x = 488,529.30

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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.