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Finding the Fourth Proportional to 614,164.40, 921,246.60 and 214,672.40

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Solution

The fourth proportional to 614,164.40, 921,246.60 and 214,672.40 is: 322,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,164.40 : 921,246.60 = 214,672.40 : x
  2. Step 2: Convert to fraction form
    614,164.40/921,246.60 = 214,672.40/x
  3. Step 3: Cross multiply
    614,164.40x = 921,246.60 × 214,672.40
  4. Step 4: Simplify right side
    614,164.40x = 197,766,218,613.84
  5. Step 5: Solve for x
    x = 197,766,218,613.84/614,164.40
  6. Step 6: Final answer
    x = 322,008.60

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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.