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Finding the Fourth Proportional to 456,574.59, 629,930.12 and 275,341.95

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Solution

The fourth proportional to 456,574.59, 629,930.12 and 275,341.95 is: 379,885.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,574.59 : 629,930.12 = 275,341.95 : x
  2. Step 2: Convert to fraction form
    456,574.59/629,930.12 = 275,341.95/x
  3. Step 3: Cross multiply
    456,574.59x = 629,930.12 × 275,341.95
  4. Step 4: Simplify right side
    456,574.59x = 173,446,186,227.82
  5. Step 5: Solve for x
    x = 173,446,186,227.82/456,574.59
  6. Step 6: Final answer
    x = 379,885.76

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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.