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Finding the Fourth Proportional to 321,590.52, 443,790.54 and 178,353.24

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Solution

The fourth proportional to 321,590.52, 443,790.54 and 178,353.24 is: 246,125.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,590.52 : 443,790.54 = 178,353.24 : x
  2. Step 2: Convert to fraction form
    321,590.52/443,790.54 = 178,353.24/x
  3. Step 3: Cross multiply
    321,590.52x = 443,790.54 × 178,353.24
  4. Step 4: Simplify right side
    321,590.52x = 79,151,480,690.35
  5. Step 5: Solve for x
    x = 79,151,480,690.35/321,590.52
  6. Step 6: Final answer
    x = 246,125.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.