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Finding the Fourth Proportional to 322,355.60, 483,533.40 and 256,000.40

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Solution

The fourth proportional to 322,355.60, 483,533.40 and 256,000.40 is: 384,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,355.60 : 483,533.40 = 256,000.40 : x
  2. Step 2: Convert to fraction form
    322,355.60/483,533.40 = 256,000.40/x
  3. Step 3: Cross multiply
    322,355.60x = 483,533.40 × 256,000.40
  4. Step 4: Simplify right side
    322,355.60x = 123,784,743,813.36
  5. Step 5: Solve for x
    x = 123,784,743,813.36/322,355.60
  6. Step 6: Final answer
    x = 384,000.60

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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.