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Finding the Fourth Proportional to 443,125.54, 664,688.33 and 353,961.55

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Solution

The fourth proportional to 443,125.54, 664,688.33 and 353,961.55 is: 530,942.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,125.54 : 664,688.33 = 353,961.55 : x
  2. Step 2: Convert to fraction form
    443,125.54/664,688.33 = 353,961.55/x
  3. Step 3: Cross multiply
    443,125.54x = 664,688.33 × 353,961.55
  4. Step 4: Simplify right side
    443,125.54x = 235,274,108,203.25
  5. Step 5: Solve for x
    x = 235,274,108,203.25/443,125.54
  6. Step 6: Final answer
    x = 530,942.34

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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.