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Finding the Fourth Proportional to 529,601.40, 793,883.70 and 213,636.60

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Solution

The fourth proportional to 529,601.40, 793,883.70 and 213,636.60 is: 320,245.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,601.40 : 793,883.70 = 213,636.60 : x
  2. Step 2: Convert to fraction form
    529,601.40/793,883.70 = 213,636.60/x
  3. Step 3: Cross multiply
    529,601.40x = 793,883.70 × 213,636.60
  4. Step 4: Simplify right side
    529,601.40x = 169,602,614,463.42
  5. Step 5: Solve for x
    x = 169,602,614,463.42/529,601.40
  6. Step 6: Final answer
    x = 320,245.78

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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.