Home / 411,128.21-616,046.01-316,243.85

Finding the Fourth Proportional to 411,128.21, 616,046.01 and 316,243.85

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Solution

The fourth proportional to 411,128.21, 616,046.01 and 316,243.85 is: 473,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,128.21 : 616,046.01 = 316,243.85 : x
  2. Step 2: Convert to fraction form
    411,128.21/616,046.01 = 316,243.85/x
  3. Step 3: Cross multiply
    411,128.21x = 616,046.01 × 316,243.85
  4. Step 4: Simplify right side
    411,128.21x = 194,820,757,713.39
  5. Step 5: Solve for x
    x = 194,820,757,713.39/411,128.21
  6. Step 6: Final answer
    x = 473,868.62

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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.