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Finding the Fourth Proportional to 325,221.90, 487,476.98 and 167,459.82

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Solution

The fourth proportional to 325,221.90, 487,476.98 and 167,459.82 is: 251,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,221.90 : 487,476.98 = 167,459.82 : x
  2. Step 2: Convert to fraction form
    325,221.90/487,476.98 = 167,459.82/x
  3. Step 3: Cross multiply
    325,221.90x = 487,476.98 × 167,459.82
  4. Step 4: Simplify right side
    325,221.90x = 81,632,804,887.56
  5. Step 5: Solve for x
    x = 81,632,804,887.56/325,221.90
  6. Step 6: Final answer
    x = 251,006.49

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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.