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Finding the Fourth Proportional to 411,204.80, 616,807.20 and 298,355.60

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Solution

The fourth proportional to 411,204.80, 616,807.20 and 298,355.60 is: 447,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,204.80 : 616,807.20 = 298,355.60 : x
  2. Step 2: Convert to fraction form
    411,204.80/616,807.20 = 298,355.60/x
  3. Step 3: Cross multiply
    411,204.80x = 616,807.20 × 298,355.60
  4. Step 4: Simplify right side
    411,204.80x = 184,027,882,240.32
  5. Step 5: Solve for x
    x = 184,027,882,240.32/411,204.80
  6. Step 6: Final answer
    x = 447,533.40

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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.