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Finding the Fourth Proportional to 439,431.61, 606,460.82 and 267,361.79

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Solution

The fourth proportional to 439,431.61, 606,460.82 and 267,361.79 is: 368,986.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,431.61 : 606,460.82 = 267,361.79 : x
  2. Step 2: Convert to fraction form
    439,431.61/606,460.82 = 267,361.79/x
  3. Step 3: Cross multiply
    439,431.61x = 606,460.82 × 267,361.79
  4. Step 4: Simplify right side
    439,431.61x = 162,144,450,400.07
  5. Step 5: Solve for x
    x = 162,144,450,400.07/439,431.61
  6. Step 6: Final answer
    x = 368,986.77

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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.