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Finding the Fourth Proportional to 319,595.58, 441,201.54 and 198,775.85

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Solution

The fourth proportional to 319,595.58, 441,201.54 and 198,775.85 is: 274,409.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,595.58 : 441,201.54 = 198,775.85 : x
  2. Step 2: Convert to fraction form
    319,595.58/441,201.54 = 198,775.85/x
  3. Step 3: Cross multiply
    319,595.58x = 441,201.54 × 198,775.85
  4. Step 4: Simplify right side
    319,595.58x = 87,700,208,928.80
  5. Step 5: Solve for x
    x = 87,700,208,928.80/319,595.58
  6. Step 6: Final answer
    x = 274,409.96

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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.