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Finding the Fourth Proportional to 586,846.81, 809,858.92 and 328,721.58

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Solution

The fourth proportional to 586,846.81, 809,858.92 and 328,721.58 is: 453,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,846.81 : 809,858.92 = 328,721.58 : x
  2. Step 2: Convert to fraction form
    586,846.81/809,858.92 = 328,721.58/x
  3. Step 3: Cross multiply
    586,846.81x = 809,858.92 × 328,721.58
  4. Step 4: Simplify right side
    586,846.81x = 266,218,103,759.49
  5. Step 5: Solve for x
    x = 266,218,103,759.49/586,846.81
  6. Step 6: Final answer
    x = 453,641.56

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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.