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Finding the Fourth Proportional to 586,673.26, 809,542.17 and 328,514.31

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Solution

The fourth proportional to 586,673.26, 809,542.17 and 328,514.31 is: 453,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,673.26 : 809,542.17 = 328,514.31 : x
  2. Step 2: Convert to fraction form
    586,673.26/809,542.17 = 328,514.31/x
  3. Step 3: Cross multiply
    586,673.26x = 809,542.17 × 328,514.31
  4. Step 4: Simplify right side
    586,673.26x = 265,946,187,393.45
  5. Step 5: Solve for x
    x = 265,946,187,393.45/586,673.26
  6. Step 6: Final answer
    x = 453,312.27

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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.