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Finding the Fourth Proportional to 481,808.40, 722,712.60 and 245,612.40

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Solution

The fourth proportional to 481,808.40, 722,712.60 and 245,612.40 is: 368,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,808.40 : 722,712.60 = 245,612.40 : x
  2. Step 2: Convert to fraction form
    481,808.40/722,712.60 = 245,612.40/x
  3. Step 3: Cross multiply
    481,808.40x = 722,712.60 × 245,612.40
  4. Step 4: Simplify right side
    481,808.40x = 177,507,176,196.24
  5. Step 5: Solve for x
    x = 177,507,176,196.24/481,808.40
  6. Step 6: Final answer
    x = 368,418.60

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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.