Home / 443,911.23-666,340.69-191,316.38

Finding the Fourth Proportional to 443,911.23, 666,340.69 and 191,316.38

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Solution

The fourth proportional to 443,911.23, 666,340.69 and 191,316.38 is: 287,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,911.23 : 666,340.69 = 191,316.38 : x
  2. Step 2: Convert to fraction form
    443,911.23/666,340.69 = 191,316.38/x
  3. Step 3: Cross multiply
    443,911.23x = 666,340.69 × 191,316.38
  4. Step 4: Simplify right side
    443,911.23x = 127,481,885,325.80
  5. Step 5: Solve for x
    x = 127,481,885,325.80/443,911.23
  6. Step 6: Final answer
    x = 287,178.78

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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.