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Finding the Fourth Proportional to 342,416.35, 472,548.49 and 189,452.06

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Solution

The fourth proportional to 342,416.35, 472,548.49 and 189,452.06 is: 261,451.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,416.35 : 472,548.49 = 189,452.06 : x
  2. Step 2: Convert to fraction form
    342,416.35/472,548.49 = 189,452.06/x
  3. Step 3: Cross multiply
    342,416.35x = 472,548.49 × 189,452.06
  4. Step 4: Simplify right side
    342,416.35x = 89,525,286,607.37
  5. Step 5: Solve for x
    x = 89,525,286,607.37/342,416.35
  6. Step 6: Final answer
    x = 261,451.55

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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.