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Finding the Fourth Proportional to 548,644.44, 757,093.76 and 306,885.56

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Solution

The fourth proportional to 548,644.44, 757,093.76 and 306,885.56 is: 423,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,644.44 : 757,093.76 = 306,885.56 : x
  2. Step 2: Convert to fraction form
    548,644.44/757,093.76 = 306,885.56/x
  3. Step 3: Cross multiply
    548,644.44x = 757,093.76 × 306,885.56
  4. Step 4: Simplify right side
    548,644.44x = 232,341,142,510.11
  5. Step 5: Solve for x
    x = 232,341,142,510.11/548,644.44
  6. Step 6: Final answer
    x = 423,482.18

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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.