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Finding the Fourth Proportional to 326,408.88, 450,420.30 and 181,223.06

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Solution

The fourth proportional to 326,408.88, 450,420.30 and 181,223.06 is: 250,074.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,408.88 : 450,420.30 = 181,223.06 : x
  2. Step 2: Convert to fraction form
    326,408.88/450,420.30 = 181,223.06/x
  3. Step 3: Cross multiply
    326,408.88x = 450,420.30 × 181,223.06
  4. Step 4: Simplify right side
    326,408.88x = 81,626,545,052.12
  5. Step 5: Solve for x
    x = 81,626,545,052.12/326,408.88
  6. Step 6: Final answer
    x = 250,074.52

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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.