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Finding the Fourth Proportional to 317,754.76, 438,540.48 and 183,618.76

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Solution

The fourth proportional to 317,754.76, 438,540.48 and 183,618.76 is: 253,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,754.76 : 438,540.48 = 183,618.76 : x
  2. Step 2: Convert to fraction form
    317,754.76/438,540.48 = 183,618.76/x
  3. Step 3: Cross multiply
    317,754.76x = 438,540.48 × 183,618.76
  4. Step 4: Simplify right side
    317,754.76x = 80,524,259,147.40
  5. Step 5: Solve for x
    x = 80,524,259,147.40/317,754.76
  6. Step 6: Final answer
    x = 253,416.37

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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.