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Finding the Fourth Proportional to 354,926.40, 532,389.60 and 236,212.80

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Solution

The fourth proportional to 354,926.40, 532,389.60 and 236,212.80 is: 354,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,926.40 : 532,389.60 = 236,212.80 : x
  2. Step 2: Convert to fraction form
    354,926.40/532,389.60 = 236,212.80/x
  3. Step 3: Cross multiply
    354,926.40x = 532,389.60 × 236,212.80
  4. Step 4: Simplify right side
    354,926.40x = 125,757,238,106.88
  5. Step 5: Solve for x
    x = 125,757,238,106.88/354,926.40
  6. Step 6: Final answer
    x = 354,319.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.