Home / 384,914.79-531,171.39-212,829.78

Finding the Fourth Proportional to 384,914.79, 531,171.39 and 212,829.78

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Solution

The fourth proportional to 384,914.79, 531,171.39 and 212,829.78 is: 293,699.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,914.79 : 531,171.39 = 212,829.78 : x
  2. Step 2: Convert to fraction form
    384,914.79/531,171.39 = 212,829.78/x
  3. Step 3: Cross multiply
    384,914.79x = 531,171.39 × 212,829.78
  4. Step 4: Simplify right side
    384,914.79x = 113,049,090,075.99
  5. Step 5: Solve for x
    x = 113,049,090,075.99/384,914.79
  6. Step 6: Final answer
    x = 293,699.00

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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.