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Finding the Fourth Proportional to 328,819.60, 493,229.40 and 118,464.40

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Solution

The fourth proportional to 328,819.60, 493,229.40 and 118,464.40 is: 177,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,819.60 : 493,229.40 = 118,464.40 : x
  2. Step 2: Convert to fraction form
    328,819.60/493,229.40 = 118,464.40/x
  3. Step 3: Cross multiply
    328,819.60x = 493,229.40 × 118,464.40
  4. Step 4: Simplify right side
    328,819.60x = 58,430,124,933.36
  5. Step 5: Solve for x
    x = 58,430,124,933.36/328,819.60
  6. Step 6: Final answer
    x = 177,696.60

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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.