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Finding the Fourth Proportional to 324,111.80, 486,167.70 and 217,823.60

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Solution

The fourth proportional to 324,111.80, 486,167.70 and 217,823.60 is: 326,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,111.80 : 486,167.70 = 217,823.60 : x
  2. Step 2: Convert to fraction form
    324,111.80/486,167.70 = 217,823.60/x
  3. Step 3: Cross multiply
    324,111.80x = 486,167.70 × 217,823.60
  4. Step 4: Simplify right side
    324,111.80x = 105,898,798,617.72
  5. Step 5: Solve for x
    x = 105,898,798,617.72/324,111.80
  6. Step 6: Final answer
    x = 326,735.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.