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Finding the Fourth Proportional to 452,782.39, 679,485.56 and 186,543.31

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Solution

The fourth proportional to 452,782.39, 679,485.56 and 186,543.31 is: 279,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,782.39 : 679,485.56 = 186,543.31 : x
  2. Step 2: Convert to fraction form
    452,782.39/679,485.56 = 186,543.31/x
  3. Step 3: Cross multiply
    452,782.39x = 679,485.56 × 186,543.31
  4. Step 4: Simplify right side
    452,782.39x = 126,753,485,459.60
  5. Step 5: Solve for x
    x = 126,753,485,459.60/452,782.39
  6. Step 6: Final answer
    x = 279,943.50

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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.