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Finding the Fourth Proportional to 548,881.87, 757,536.22 and 316,264.27

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Solution

The fourth proportional to 548,881.87, 757,536.22 and 316,264.27 is: 436,490.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,881.87 : 757,536.22 = 316,264.27 : x
  2. Step 2: Convert to fraction form
    548,881.87/757,536.22 = 316,264.27/x
  3. Step 3: Cross multiply
    548,881.87x = 757,536.22 × 316,264.27
  4. Step 4: Simplify right side
    548,881.87x = 239,581,639,538.73
  5. Step 5: Solve for x
    x = 239,581,639,538.73/548,881.87
  6. Step 6: Final answer
    x = 436,490.35

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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.