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Finding the Fourth Proportional to 389,808.95, 584,713.44 and 94,320.95

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Solution

The fourth proportional to 389,808.95, 584,713.44 and 94,320.95 is: 141,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,808.95 : 584,713.44 = 94,320.95 : x
  2. Step 2: Convert to fraction form
    389,808.95/584,713.44 = 94,320.95/x
  3. Step 3: Cross multiply
    389,808.95x = 584,713.44 × 94,320.95
  4. Step 4: Simplify right side
    389,808.95x = 55,150,724,215.00
  5. Step 5: Solve for x
    x = 55,150,724,215.00/389,808.95
  6. Step 6: Final answer
    x = 141,481.42

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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.