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Finding the Fourth Proportional to 483,384.09, 667,088.96 and 330,742.43

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Solution

The fourth proportional to 483,384.09, 667,088.96 and 330,742.43 is: 456,437.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,384.09 : 667,088.96 = 330,742.43 : x
  2. Step 2: Convert to fraction form
    483,384.09/667,088.96 = 330,742.43/x
  3. Step 3: Cross multiply
    483,384.09x = 667,088.96 × 330,742.43
  4. Step 4: Simplify right side
    483,384.09x = 220,634,623,656.57
  5. Step 5: Solve for x
    x = 220,634,623,656.57/483,384.09
  6. Step 6: Final answer
    x = 456,437.50

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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.