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Finding the Fourth Proportional to 373,645.92, 515,642.74 and 212,524.16

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Solution

The fourth proportional to 373,645.92, 515,642.74 and 212,524.16 is: 293,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,645.92 : 515,642.74 = 212,524.16 : x
  2. Step 2: Convert to fraction form
    373,645.92/515,642.74 = 212,524.16/x
  3. Step 3: Cross multiply
    373,645.92x = 515,642.74 × 212,524.16
  4. Step 4: Simplify right side
    373,645.92x = 109,586,540,178.60
  5. Step 5: Solve for x
    x = 109,586,540,178.60/373,645.92
  6. Step 6: Final answer
    x = 293,289.81

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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.