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Finding the Fourth Proportional to 323,911.79, 446,995.31 and 178,718.91

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Solution

The fourth proportional to 323,911.79, 446,995.31 and 178,718.91 is: 246,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,911.79 : 446,995.31 = 178,718.91 : x
  2. Step 2: Convert to fraction form
    323,911.79/446,995.31 = 178,718.91/x
  3. Step 3: Cross multiply
    323,911.79x = 446,995.31 × 178,718.91
  4. Step 4: Simplify right side
    323,911.79x = 79,886,513,684.72
  5. Step 5: Solve for x
    x = 79,886,513,684.72/323,911.79
  6. Step 6: Final answer
    x = 246,630.46

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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.