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Finding the Fourth Proportional to 586,673.38, 809,542.34 and 328,514.43

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Solution

The fourth proportional to 586,673.38, 809,542.34 and 328,514.43 is: 453,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,673.38 : 809,542.34 = 328,514.43 : x
  2. Step 2: Convert to fraction form
    586,673.38/809,542.34 = 328,514.43/x
  3. Step 3: Cross multiply
    586,673.38x = 809,542.34 × 328,514.43
  4. Step 4: Simplify right side
    586,673.38x = 265,946,343,011.11
  5. Step 5: Solve for x
    x = 265,946,343,011.11/586,673.38
  6. Step 6: Final answer
    x = 453,312.44

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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.