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Finding the Fourth Proportional to 411,674.60, 617,511.90 and 162,324.20

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Solution

The fourth proportional to 411,674.60, 617,511.90 and 162,324.20 is: 243,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,674.60 : 617,511.90 = 162,324.20 : x
  2. Step 2: Convert to fraction form
    411,674.60/617,511.90 = 162,324.20/x
  3. Step 3: Cross multiply
    411,674.60x = 617,511.90 × 162,324.20
  4. Step 4: Simplify right side
    411,674.60x = 100,237,125,157.98
  5. Step 5: Solve for x
    x = 100,237,125,157.98/411,674.60
  6. Step 6: Final answer
    x = 243,486.30

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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.