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Finding the Fourth Proportional to 322,454.20, 483,685.35 and 97,816.90

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Solution

The fourth proportional to 322,454.20, 483,685.35 and 97,816.90 is: 146,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,454.20 : 483,685.35 = 97,816.90 : x
  2. Step 2: Convert to fraction form
    322,454.20/483,685.35 = 97,816.90/x
  3. Step 3: Cross multiply
    322,454.20x = 483,685.35 × 97,816.90
  4. Step 4: Simplify right side
    322,454.20x = 47,312,601,512.42
  5. Step 5: Solve for x
    x = 47,312,601,512.42/322,454.20
  6. Step 6: Final answer
    x = 146,726.58

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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.