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Finding the Fourth Proportional to 474,687.49, 655,085.40 and 259,827.73

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Solution

The fourth proportional to 474,687.49, 655,085.40 and 259,827.73 is: 358,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,687.49 : 655,085.40 = 259,827.73 : x
  2. Step 2: Convert to fraction form
    474,687.49/655,085.40 = 259,827.73/x
  3. Step 3: Cross multiply
    474,687.49x = 655,085.40 × 259,827.73
  4. Step 4: Simplify right side
    474,687.49x = 170,209,352,438.14
  5. Step 5: Solve for x
    x = 170,209,352,438.14/474,687.49
  6. Step 6: Final answer
    x = 358,571.39

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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.