Home / 412,890.52-619,439.84-117,402.52

Finding the Fourth Proportional to 412,890.52, 619,439.84 and 117,402.52

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Solution

The fourth proportional to 412,890.52, 619,439.84 and 117,402.52 is: 176,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,890.52 : 619,439.84 = 117,402.52 : x
  2. Step 2: Convert to fraction form
    412,890.52/619,439.84 = 117,402.52/x
  3. Step 3: Cross multiply
    412,890.52x = 619,439.84 × 117,402.52
  4. Step 4: Simplify right side
    412,890.52x = 72,723,798,204.40
  5. Step 5: Solve for x
    x = 72,723,798,204.40/412,890.52
  6. Step 6: Final answer
    x = 176,133.37

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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.