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Finding the Fourth Proportional to 355,658.40, 533,487.60 and 335,383.20

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Solution

The fourth proportional to 355,658.40, 533,487.60 and 335,383.20 is: 503,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,658.40 : 533,487.60 = 335,383.20 : x
  2. Step 2: Convert to fraction form
    355,658.40/533,487.60 = 335,383.20/x
  3. Step 3: Cross multiply
    355,658.40x = 533,487.60 × 335,383.20
  4. Step 4: Simplify right side
    355,658.40x = 178,922,778,448.32
  5. Step 5: Solve for x
    x = 178,922,778,448.32/355,658.40
  6. Step 6: Final answer
    x = 503,074.80

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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.