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Finding the Fourth Proportional to 349,384.60, 524,076.90 and 323,723.80

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Solution

The fourth proportional to 349,384.60, 524,076.90 and 323,723.80 is: 485,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,384.60 : 524,076.90 = 323,723.80 : x
  2. Step 2: Convert to fraction form
    349,384.60/524,076.90 = 323,723.80/x
  3. Step 3: Cross multiply
    349,384.60x = 524,076.90 × 323,723.80
  4. Step 4: Simplify right side
    349,384.60x = 169,656,165,560.22
  5. Step 5: Solve for x
    x = 169,656,165,560.22/349,384.60
  6. Step 6: Final answer
    x = 485,585.70

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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.