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Finding the Fourth Proportional to 577,985.26, 866,890.41 and 157,293.94

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Solution

The fourth proportional to 577,985.26, 866,890.41 and 157,293.94 is: 235,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,985.26 : 866,890.41 = 157,293.94 : x
  2. Step 2: Convert to fraction form
    577,985.26/866,890.41 = 157,293.94/x
  3. Step 3: Cross multiply
    577,985.26x = 866,890.41 × 157,293.94
  4. Step 4: Simplify right side
    577,985.26x = 136,356,608,137.12
  5. Step 5: Solve for x
    x = 136,356,608,137.12/577,985.26
  6. Step 6: Final answer
    x = 235,917.10

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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.