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Finding the Fourth Proportional to 411,661.60, 617,492.40 and 225,037.60

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Solution

The fourth proportional to 411,661.60, 617,492.40 and 225,037.60 is: 337,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,661.60 : 617,492.40 = 225,037.60 : x
  2. Step 2: Convert to fraction form
    411,661.60/617,492.40 = 225,037.60/x
  3. Step 3: Cross multiply
    411,661.60x = 617,492.40 × 225,037.60
  4. Step 4: Simplify right side
    411,661.60x = 138,959,007,714.24
  5. Step 5: Solve for x
    x = 138,959,007,714.24/411,661.60
  6. Step 6: Final answer
    x = 337,556.40

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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.