Home / 388,279.06-535,899.41-235,400.57

Finding the Fourth Proportional to 388,279.06, 535,899.41 and 235,400.57

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Solution

The fourth proportional to 388,279.06, 535,899.41 and 235,400.57 is: 324,897.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,279.06 : 535,899.41 = 235,400.57 : x
  2. Step 2: Convert to fraction form
    388,279.06/535,899.41 = 235,400.57/x
  3. Step 3: Cross multiply
    388,279.06x = 535,899.41 × 235,400.57
  4. Step 4: Simplify right side
    388,279.06x = 126,151,026,576.66
  5. Step 5: Solve for x
    x = 126,151,026,576.66/388,279.06
  6. Step 6: Final answer
    x = 324,897.84

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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.