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Finding the Fourth Proportional to 342,416.92, 472,532.78 and 191,513.92

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Solution

The fourth proportional to 342,416.92, 472,532.78 and 191,513.92 is: 264,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,416.92 : 472,532.78 = 191,513.92 : x
  2. Step 2: Convert to fraction form
    342,416.92/472,532.78 = 191,513.92/x
  3. Step 3: Cross multiply
    342,416.92x = 472,532.78 × 191,513.92
  4. Step 4: Simplify right side
    342,416.92x = 90,496,605,026.30
  5. Step 5: Solve for x
    x = 90,496,605,026.30/342,416.92
  6. Step 6: Final answer
    x = 264,287.77

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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.