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Finding the Fourth Proportional to 217,675.20, 326,512.80 and 173,060.40

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Solution

The fourth proportional to 217,675.20, 326,512.80 and 173,060.40 is: 259,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,675.20 : 326,512.80 = 173,060.40 : x
  2. Step 2: Convert to fraction form
    217,675.20/326,512.80 = 173,060.40/x
  3. Step 3: Cross multiply
    217,675.20x = 326,512.80 × 173,060.40
  4. Step 4: Simplify right side
    217,675.20x = 56,506,435,773.12
  5. Step 5: Solve for x
    x = 56,506,435,773.12/217,675.20
  6. Step 6: Final answer
    x = 259,590.60

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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.