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Finding the Fourth Proportional to 322,216.05, 483,840.45 and 256,205.10

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Solution

The fourth proportional to 322,216.05, 483,840.45 and 256,205.10 is: 384,718.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,216.05 : 483,840.45 = 256,205.10 : x
  2. Step 2: Convert to fraction form
    322,216.05/483,840.45 = 256,205.10/x
  3. Step 3: Cross multiply
    322,216.05x = 483,840.45 × 256,205.10
  4. Step 4: Simplify right side
    322,216.05x = 123,962,390,876.30
  5. Step 5: Solve for x
    x = 123,962,390,876.30/322,216.05
  6. Step 6: Final answer
    x = 384,718.24

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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.