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Finding the Fourth Proportional to 526,562.40, 789,613.20 and 210,914.40

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Solution

The fourth proportional to 526,562.40, 789,613.20 and 210,914.40 is: 316,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,562.40 : 789,613.20 = 210,914.40 : x
  2. Step 2: Convert to fraction form
    526,562.40/789,613.20 = 210,914.40/x
  3. Step 3: Cross multiply
    526,562.40x = 789,613.20 × 210,914.40
  4. Step 4: Simplify right side
    526,562.40x = 166,540,794,310.08
  5. Step 5: Solve for x
    x = 166,540,794,310.08/526,562.40
  6. Step 6: Final answer
    x = 316,279.31

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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.