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Finding the Fourth Proportional to 355,486.20, 533,302.20 and 118,998.60

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Solution

The fourth proportional to 355,486.20, 533,302.20 and 118,998.60 is: 178,522.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,486.20 : 533,302.20 = 118,998.60 : x
  2. Step 2: Convert to fraction form
    355,486.20/533,302.20 = 118,998.60/x
  3. Step 3: Cross multiply
    355,486.20x = 533,302.20 × 118,998.60
  4. Step 4: Simplify right side
    355,486.20x = 63,462,215,176.92
  5. Step 5: Solve for x
    x = 63,462,215,176.92/355,486.20
  6. Step 6: Final answer
    x = 178,522.30

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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.