Home / 438,970.63-605,777.37-245,378.30

Finding the Fourth Proportional to 438,970.63, 605,777.37 and 245,378.30

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Solution

The fourth proportional to 438,970.63, 605,777.37 and 245,378.30 is: 338,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,970.63 : 605,777.37 = 245,378.30 : x
  2. Step 2: Convert to fraction form
    438,970.63/605,777.37 = 245,378.30/x
  3. Step 3: Cross multiply
    438,970.63x = 605,777.37 × 245,378.30
  4. Step 4: Simplify right side
    438,970.63x = 148,644,621,229.07
  5. Step 5: Solve for x
    x = 148,644,621,229.07/438,970.63
  6. Step 6: Final answer
    x = 338,620.88

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1.5x scale

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.