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Finding the Fourth Proportional to 439,242.52, 606,161.40 and 257,958.28

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Solution

The fourth proportional to 439,242.52, 606,161.40 and 257,958.28 is: 355,986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,242.52 : 606,161.40 = 257,958.28 : x
  2. Step 2: Convert to fraction form
    439,242.52/606,161.40 = 257,958.28/x
  3. Step 3: Cross multiply
    439,242.52x = 606,161.40 × 257,958.28
  4. Step 4: Simplify right side
    439,242.52x = 156,364,352,146.39
  5. Step 5: Solve for x
    x = 156,364,352,146.39/439,242.52
  6. Step 6: Final answer
    x = 355,986.37

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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.