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Finding the Fourth Proportional to 322,516.20, 483,774.30 and 97,876.20

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Solution

The fourth proportional to 322,516.20, 483,774.30 and 97,876.20 is: 146,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,516.20 : 483,774.30 = 97,876.20 : x
  2. Step 2: Convert to fraction form
    322,516.20/483,774.30 = 97,876.20/x
  3. Step 3: Cross multiply
    322,516.20x = 483,774.30 × 97,876.20
  4. Step 4: Simplify right side
    322,516.20x = 47,349,990,141.66
  5. Step 5: Solve for x
    x = 47,349,990,141.66/322,516.20
  6. Step 6: Final answer
    x = 146,814.30

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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.