Home / 679,196.35-937,252.77-407,128.09

Finding the Fourth Proportional to 679,196.35, 937,252.77 and 407,128.09

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Solution

The fourth proportional to 679,196.35, 937,252.77 and 407,128.09 is: 561,813.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,196.35 : 937,252.77 = 407,128.09 : x
  2. Step 2: Convert to fraction form
    679,196.35/937,252.77 = 407,128.09/x
  3. Step 3: Cross multiply
    679,196.35x = 937,252.77 × 407,128.09
  4. Step 4: Simplify right side
    679,196.35x = 381,581,930,097.31
  5. Step 5: Solve for x
    x = 381,581,930,097.31/679,196.35
  6. Step 6: Final answer
    x = 561,813.87

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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.