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Finding the Fourth Proportional to 342,665.29, 472,893.56 and 191,762.29

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Solution

The fourth proportional to 342,665.29, 472,893.56 and 191,762.29 is: 264,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,665.29 : 472,893.56 = 191,762.29 : x
  2. Step 2: Convert to fraction form
    342,665.29/472,893.56 = 191,762.29/x
  3. Step 3: Cross multiply
    342,665.29x = 472,893.56 × 191,762.29
  4. Step 4: Simplify right side
    342,665.29x = 90,683,151,991.85
  5. Step 5: Solve for x
    x = 90,683,151,991.85/342,665.29
  6. Step 6: Final answer
    x = 264,640.61

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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.