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Finding the Fourth Proportional to 548,520.94, 757,029 and 306,816.94

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Solution

The fourth proportional to 548,520.94, 757,029 and 306,816.94 is: 423,446.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,520.94 : 757,029 = 306,816.94 : x
  2. Step 2: Convert to fraction form
    548,520.94/757,029 = 306,816.94/x
  3. Step 3: Cross multiply
    548,520.94x = 757,029 × 306,816.94
  4. Step 4: Simplify right side
    548,520.94x = 232,269,321,271.26
  5. Step 5: Solve for x
    x = 232,269,321,271.26/548,520.94
  6. Step 6: Final answer
    x = 423,446.59

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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.