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Finding the Fourth Proportional to 342,432.50, 472,558.69 and 191,529.46

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Solution

The fourth proportional to 342,432.50, 472,558.69 and 191,529.46 is: 264,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,432.50 : 472,558.69 = 191,529.46 : x
  2. Step 2: Convert to fraction form
    342,432.50/472,558.69 = 191,529.46/x
  3. Step 3: Cross multiply
    342,432.50x = 472,558.69 × 191,529.46
  4. Step 4: Simplify right side
    342,432.50x = 90,508,910,714.01
  5. Step 5: Solve for x
    x = 90,508,910,714.01/342,432.50
  6. Step 6: Final answer
    x = 264,311.68

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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.