Home / 401,519.57-553,887.09-238,080.95

Finding the Fourth Proportional to 401,519.57, 553,887.09 and 238,080.95

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Solution

The fourth proportional to 401,519.57, 553,887.09 and 238,080.95 is: 328,427.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,519.57 : 553,887.09 = 238,080.95 : x
  2. Step 2: Convert to fraction form
    401,519.57/553,887.09 = 238,080.95/x
  3. Step 3: Cross multiply
    401,519.57x = 553,887.09 × 238,080.95
  4. Step 4: Simplify right side
    401,519.57x = 131,869,961,810.50
  5. Step 5: Solve for x
    x = 131,869,961,810.50/401,519.57
  6. Step 6: Final answer
    x = 328,427.24

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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.