Home / 388,277.06-535,896.65-235,398.57

Finding the Fourth Proportional to 388,277.06, 535,896.65 and 235,398.57

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Solution

The fourth proportional to 388,277.06, 535,896.65 and 235,398.57 is: 324,895.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,277.06 : 535,896.65 = 235,398.57 : x
  2. Step 2: Convert to fraction form
    388,277.06/535,896.65 = 235,398.57/x
  3. Step 3: Cross multiply
    388,277.06x = 535,896.65 × 235,398.57
  4. Step 4: Simplify right side
    388,277.06x = 126,149,303,900.80
  5. Step 5: Solve for x
    x = 126,149,303,900.80/388,277.06
  6. Step 6: Final answer
    x = 324,895.08

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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.