Home / 443,946.21-612,685.79-253,021.11

Finding the Fourth Proportional to 443,946.21, 612,685.79 and 253,021.11

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Solution

The fourth proportional to 443,946.21, 612,685.79 and 253,021.11 is: 349,191.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,946.21 : 612,685.79 = 253,021.11 : x
  2. Step 2: Convert to fraction form
    443,946.21/612,685.79 = 253,021.11/x
  3. Step 3: Cross multiply
    443,946.21x = 612,685.79 × 253,021.11
  4. Step 4: Simplify right side
    443,946.21x = 155,022,438,667.03
  5. Step 5: Solve for x
    x = 155,022,438,667.03/443,946.21
  6. Step 6: Final answer
    x = 349,191.94

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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.