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Finding the Fourth Proportional to 313,978.45, 433,301.66 and 179,868.37

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Solution

The fourth proportional to 313,978.45, 433,301.66 and 179,868.37 is: 248,224.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,978.45 : 433,301.66 = 179,868.37 : x
  2. Step 2: Convert to fraction form
    313,978.45/433,301.66 = 179,868.37/x
  3. Step 3: Cross multiply
    313,978.45x = 433,301.66 × 179,868.37
  4. Step 4: Simplify right side
    313,978.45x = 77,937,263,302.49
  5. Step 5: Solve for x
    x = 77,937,263,302.49/313,978.45
  6. Step 6: Final answer
    x = 248,224.88

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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.