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Finding the Fourth Proportional to 577,352.43, 865,732.94 and 307,634.28

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Solution

The fourth proportional to 577,352.43, 865,732.94 and 307,634.28 is: 461,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,352.43 : 865,732.94 = 307,634.28 : x
  2. Step 2: Convert to fraction form
    577,352.43/865,732.94 = 307,634.28/x
  3. Step 3: Cross multiply
    577,352.43x = 865,732.94 × 307,634.28
  4. Step 4: Simplify right side
    577,352.43x = 266,329,129,669.18
  5. Step 5: Solve for x
    x = 266,329,129,669.18/577,352.43
  6. Step 6: Final answer
    x = 461,293.86

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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.