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Finding the Fourth Proportional to 342,588.99, 472,760.75 and 189,627.48

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Solution

The fourth proportional to 342,588.99, 472,760.75 and 189,627.48 is: 261,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,588.99 : 472,760.75 = 189,627.48 : x
  2. Step 2: Convert to fraction form
    342,588.99/472,760.75 = 189,627.48/x
  3. Step 3: Cross multiply
    342,588.99x = 472,760.75 × 189,627.48
  4. Step 4: Simplify right side
    342,588.99x = 89,648,428,717.27
  5. Step 5: Solve for x
    x = 89,648,428,717.27/342,588.99
  6. Step 6: Final answer
    x = 261,679.25

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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.