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Finding the Fourth Proportional to 586,672.63, 809,541.30 and 328,513.68

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Solution

The fourth proportional to 586,672.63, 809,541.30 and 328,513.68 is: 453,311.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,672.63 : 809,541.30 = 328,513.68 : x
  2. Step 2: Convert to fraction form
    586,672.63/809,541.30 = 328,513.68/x
  3. Step 3: Cross multiply
    586,672.63x = 809,541.30 × 328,513.68
  4. Step 4: Simplify right side
    586,672.63x = 265,945,395,842.69
  5. Step 5: Solve for x
    x = 265,945,395,842.69/586,672.63
  6. Step 6: Final answer
    x = 453,311.41

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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.