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Finding the Fourth Proportional to 450,523.11, 675,713.58 and 210,803.31

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Solution

The fourth proportional to 450,523.11, 675,713.58 and 210,803.31 is: 316,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,523.11 : 675,713.58 = 210,803.31 : x
  2. Step 2: Convert to fraction form
    450,523.11/675,713.58 = 210,803.31/x
  3. Step 3: Cross multiply
    450,523.11x = 675,713.58 × 210,803.31
  4. Step 4: Simplify right side
    450,523.11x = 142,442,659,275.95
  5. Step 5: Solve for x
    x = 142,442,659,275.95/450,523.11
  6. Step 6: Final answer
    x = 316,171.70

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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.