Home / 641,336.82-961,977.63-168,011.70

Finding the Fourth Proportional to 641,336.82, 961,977.63 and 168,011.70

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Solution

The fourth proportional to 641,336.82, 961,977.63 and 168,011.70 is: 252,010.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,336.82 : 961,977.63 = 168,011.70 : x
  2. Step 2: Convert to fraction form
    641,336.82/961,977.63 = 168,011.70/x
  3. Step 3: Cross multiply
    641,336.82x = 961,977.63 × 168,011.70
  4. Step 4: Simplify right side
    641,336.82x = 161,623,496,978.27
  5. Step 5: Solve for x
    x = 161,623,496,978.27/641,336.82
  6. Step 6: Final answer
    x = 252,010.32

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1.5x scale

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.