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Finding the Fourth Proportional to 443,816.54, 612,465.38 and 239,866.83

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Solution

The fourth proportional to 443,816.54, 612,465.38 and 239,866.83 is: 331,015.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,816.54 : 612,465.38 = 239,866.83 : x
  2. Step 2: Convert to fraction form
    443,816.54/612,465.38 = 239,866.83/x
  3. Step 3: Cross multiply
    443,816.54x = 612,465.38 × 239,866.83
  4. Step 4: Simplify right side
    443,816.54x = 146,910,127,513.76
  5. Step 5: Solve for x
    x = 146,910,127,513.76/443,816.54
  6. Step 6: Final answer
    x = 331,015.44

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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.