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Finding the Fourth Proportional to 981,567.63, 1,472,369.89 and 307,634.01

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Solution

The fourth proportional to 981,567.63, 1,472,369.89 and 307,634.01 is: 461,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,567.63 : 1,472,369.89 = 307,634.01 : x
  2. Step 2: Convert to fraction form
    981,567.63/1,472,369.89 = 307,634.01/x
  3. Step 3: Cross multiply
    981,567.63x = 1,472,369.89 × 307,634.01
  4. Step 4: Simplify right side
    981,567.63x = 452,951,053,848.50
  5. Step 5: Solve for x
    x = 452,951,053,848.50/981,567.63
  6. Step 6: Final answer
    x = 461,456.80

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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.