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Finding the Fourth Proportional to 548,048.56, 756,322.95 and 299,705.11

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Solution

The fourth proportional to 548,048.56, 756,322.95 and 299,705.11 is: 413,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,048.56 : 756,322.95 = 299,705.11 : x
  2. Step 2: Convert to fraction form
    548,048.56/756,322.95 = 299,705.11/x
  3. Step 3: Cross multiply
    548,048.56x = 756,322.95 × 299,705.11
  4. Step 4: Simplify right side
    548,048.56x = 226,673,849,535.94
  5. Step 5: Solve for x
    x = 226,673,849,535.94/548,048.56
  6. Step 6: Final answer
    x = 413,601.76

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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.