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Finding the Fourth Proportional to 459,745.05, 634,373.40 and 255,790.73

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Solution

The fourth proportional to 459,745.05, 634,373.40 and 255,790.73 is: 352,949.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,745.05 : 634,373.40 = 255,790.73 : x
  2. Step 2: Convert to fraction form
    459,745.05/634,373.40 = 255,790.73/x
  3. Step 3: Cross multiply
    459,745.05x = 634,373.40 × 255,790.73
  4. Step 4: Simplify right side
    459,745.05x = 162,266,835,078.58
  5. Step 5: Solve for x
    x = 162,266,835,078.58/459,745.05
  6. Step 6: Final answer
    x = 352,949.61

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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.