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Finding the Fourth Proportional to 459,517.70, 634,128.80 and 258,313.70

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Solution

The fourth proportional to 459,517.70, 634,128.80 and 258,313.70 is: 356,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,517.70 : 634,128.80 = 258,313.70 : x
  2. Step 2: Convert to fraction form
    459,517.70/634,128.80 = 258,313.70/x
  3. Step 3: Cross multiply
    459,517.70x = 634,128.80 × 258,313.70
  4. Step 4: Simplify right side
    459,517.70x = 163,804,156,604.56
  5. Step 5: Solve for x
    x = 163,804,156,604.56/459,517.70
  6. Step 6: Final answer
    x = 356,469.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.