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Finding the Fourth Proportional to 554,976.80, 832,128.11 and 217,613.29

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Solution

The fourth proportional to 554,976.80, 832,128.11 and 217,613.29 is: 326,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,976.80 : 832,128.11 = 217,613.29 : x
  2. Step 2: Convert to fraction form
    554,976.80/832,128.11 = 217,613.29/x
  3. Step 3: Cross multiply
    554,976.80x = 832,128.11 × 217,613.29
  4. Step 4: Simplify right side
    554,976.80x = 181,082,133,366.25
  5. Step 5: Solve for x
    x = 181,082,133,366.25/554,976.80
  6. Step 6: Final answer
    x = 326,287.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.