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Finding the Fourth Proportional to 405,832.60, 608,748.90 and 156,514.60

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Solution

The fourth proportional to 405,832.60, 608,748.90 and 156,514.60 is: 234,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,832.60 : 608,748.90 = 156,514.60 : x
  2. Step 2: Convert to fraction form
    405,832.60/608,748.90 = 156,514.60/x
  3. Step 3: Cross multiply
    405,832.60x = 608,748.90 × 156,514.60
  4. Step 4: Simplify right side
    405,832.60x = 95,278,090,583.94
  5. Step 5: Solve for x
    x = 95,278,090,583.94/405,832.60
  6. Step 6: Final answer
    x = 234,771.90

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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.