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Finding the Fourth Proportional to 548,938.67, 757,568.72 and 307,216.22

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Solution

The fourth proportional to 548,938.67, 757,568.72 and 307,216.22 is: 423,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,938.67 : 757,568.72 = 307,216.22 : x
  2. Step 2: Convert to fraction form
    548,938.67/757,568.72 = 307,216.22/x
  3. Step 3: Cross multiply
    548,938.67x = 757,568.72 × 307,216.22
  4. Step 4: Simplify right side
    548,938.67x = 232,737,398,548.64
  5. Step 5: Solve for x
    x = 232,737,398,548.64/548,938.67
  6. Step 6: Final answer
    x = 423,977.05

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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.