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Finding the Fourth Proportional to 577,053.59, 865,400.46 and 217,274.48

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Solution

The fourth proportional to 577,053.59, 865,400.46 and 217,274.48 is: 325,843.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,053.59 : 865,400.46 = 217,274.48 : x
  2. Step 2: Convert to fraction form
    577,053.59/865,400.46 = 217,274.48/x
  3. Step 3: Cross multiply
    577,053.59x = 865,400.46 × 217,274.48
  4. Step 4: Simplify right side
    577,053.59x = 188,029,434,938.26
  5. Step 5: Solve for x
    x = 188,029,434,938.26/577,053.59
  6. Step 6: Final answer
    x = 325,843.97

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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.