Home / 381,936.23-527,075.72-209,851.43

Finding the Fourth Proportional to 381,936.23, 527,075.72 and 209,851.43

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Solution

The fourth proportional to 381,936.23, 527,075.72 and 209,851.43 is: 289,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,936.23 : 527,075.72 = 209,851.43 : x
  2. Step 2: Convert to fraction form
    381,936.23/527,075.72 = 209,851.43/x
  3. Step 3: Cross multiply
    381,936.23x = 527,075.72 × 209,851.43
  4. Step 4: Simplify right side
    381,936.23x = 110,607,589,875.64
  5. Step 5: Solve for x
    x = 110,607,589,875.64/381,936.23
  6. Step 6: Final answer
    x = 289,597.01

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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.