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Finding the Fourth Proportional to 450,579.94, 675,123.54 and 316,806.64

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Solution

The fourth proportional to 450,579.94, 675,123.54 and 316,806.64 is: 474,685.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,579.94 : 675,123.54 = 316,806.64 : x
  2. Step 2: Convert to fraction form
    450,579.94/675,123.54 = 316,806.64/x
  3. Step 3: Cross multiply
    450,579.94x = 675,123.54 × 316,806.64
  4. Step 4: Simplify right side
    450,579.94x = 213,883,620,292.31
  5. Step 5: Solve for x
    x = 213,883,620,292.31/450,579.94
  6. Step 6: Final answer
    x = 474,685.18

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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.