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Finding the Fourth Proportional to 443,971.60, 612,562.68 and 252,980.92

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Solution

The fourth proportional to 443,971.60, 612,562.68 and 252,980.92 is: 349,046.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,971.60 : 612,562.68 = 252,980.92 : x
  2. Step 2: Convert to fraction form
    443,971.60/612,562.68 = 252,980.92/x
  3. Step 3: Cross multiply
    443,971.60x = 612,562.68 × 252,980.92
  4. Step 4: Simplify right side
    443,971.60x = 154,966,670,344.07
  5. Step 5: Solve for x
    x = 154,966,670,344.07/443,971.60
  6. Step 6: Final answer
    x = 349,046.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.