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Finding the Fourth Proportional to 554,584.47, 765,326.56 and 299,935.65

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Solution

The fourth proportional to 554,584.47, 765,326.56 and 299,935.65 is: 413,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,584.47 : 765,326.56 = 299,935.65 : x
  2. Step 2: Convert to fraction form
    554,584.47/765,326.56 = 299,935.65/x
  3. Step 3: Cross multiply
    554,584.47x = 765,326.56 × 299,935.65
  4. Step 4: Simplify right side
    554,584.47x = 229,548,721,918.38
  5. Step 5: Solve for x
    x = 229,548,721,918.38/554,584.47
  6. Step 6: Final answer
    x = 413,911.20

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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.