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Finding the Fourth Proportional to 443,902.75, 612,585.50 and 239,953.66

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Solution

The fourth proportional to 443,902.75, 612,585.50 and 239,953.66 is: 331,135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,902.75 : 612,585.50 = 239,953.66 : x
  2. Step 2: Convert to fraction form
    443,902.75/612,585.50 = 239,953.66/x
  3. Step 3: Cross multiply
    443,902.75x = 612,585.50 × 239,953.66
  4. Step 4: Simplify right side
    443,902.75x = 146,992,130,056.70
  5. Step 5: Solve for x
    x = 146,992,130,056.70/443,902.75
  6. Step 6: Final answer
    x = 331,135.89

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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.