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Finding the Fourth Proportional to 450,143.88, 674,466.15 and 316,743.88

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Solution

The fourth proportional to 450,143.88, 674,466.15 and 316,743.88 is: 474,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,143.88 : 674,466.15 = 316,743.88 : x
  2. Step 2: Convert to fraction form
    450,143.88/674,466.15 = 316,743.88/x
  3. Step 3: Cross multiply
    450,143.88x = 674,466.15 × 316,743.88
  4. Step 4: Simplify right side
    450,143.88x = 213,633,022,405.71
  5. Step 5: Solve for x
    x = 213,633,022,405.71/450,143.88
  6. Step 6: Final answer
    x = 474,588.31

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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.