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Finding the Fourth Proportional to 508,170.07, 701,306.13 and 281,815.57

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Solution

The fourth proportional to 508,170.07, 701,306.13 and 281,815.57 is: 388,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,170.07 : 701,306.13 = 281,815.57 : x
  2. Step 2: Convert to fraction form
    508,170.07/701,306.13 = 281,815.57/x
  3. Step 3: Cross multiply
    508,170.07x = 701,306.13 × 281,815.57
  4. Step 4: Simplify right side
    508,170.07x = 197,638,986,770.44
  5. Step 5: Solve for x
    x = 197,638,986,770.44/508,170.07
  6. Step 6: Final answer
    x = 388,922.92

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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.