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Finding the Fourth Proportional to 342,425.75, 472,549.16 and 191,522.75

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Solution

The fourth proportional to 342,425.75, 472,549.16 and 191,522.75 is: 264,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,425.75 : 472,549.16 = 191,522.75 : x
  2. Step 2: Convert to fraction form
    342,425.75/472,549.16 = 191,522.75/x
  3. Step 3: Cross multiply
    342,425.75x = 472,549.16 × 191,522.75
  4. Step 4: Simplify right side
    342,425.75x = 90,503,914,633.39
  5. Step 5: Solve for x
    x = 90,503,914,633.39/342,425.75
  6. Step 6: Final answer
    x = 264,302.30

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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.