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Finding the Fourth Proportional to 439,353.56, 606,309.36 and 238,149.56

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Solution

The fourth proportional to 439,353.56, 606,309.36 and 238,149.56 is: 328,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,353.56 : 606,309.36 = 238,149.56 : x
  2. Step 2: Convert to fraction form
    439,353.56/606,309.36 = 238,149.56/x
  3. Step 3: Cross multiply
    439,353.56x = 606,309.36 × 238,149.56
  4. Step 4: Simplify right side
    439,353.56x = 144,392,307,307.88
  5. Step 5: Solve for x
    x = 144,392,307,307.88/439,353.56
  6. Step 6: Final answer
    x = 328,647.18

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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.