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Finding the Fourth Proportional to 293,201.40, 439,802.10 and 191,724.60

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Solution

The fourth proportional to 293,201.40, 439,802.10 and 191,724.60 is: 287,586.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,201.40 : 439,802.10 = 191,724.60 : x
  2. Step 2: Convert to fraction form
    293,201.40/439,802.10 = 191,724.60/x
  3. Step 3: Cross multiply
    293,201.40x = 439,802.10 × 191,724.60
  4. Step 4: Simplify right side
    293,201.40x = 84,320,881,701.66
  5. Step 5: Solve for x
    x = 84,320,881,701.66/293,201.40
  6. Step 6: Final answer
    x = 287,586.90

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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.