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Finding the Fourth Proportional to 320,436.88, 481,070.84 and 214,498.60

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Solution

The fourth proportional to 320,436.88, 481,070.84 and 214,498.60 is: 322,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,436.88 : 481,070.84 = 214,498.60 : x
  2. Step 2: Convert to fraction form
    320,436.88/481,070.84 = 214,498.60/x
  3. Step 3: Cross multiply
    320,436.88x = 481,070.84 × 214,498.60
  4. Step 4: Simplify right side
    320,436.88x = 103,189,021,680.82
  5. Step 5: Solve for x
    x = 103,189,021,680.82/320,436.88
  6. Step 6: Final answer
    x = 322,026.05

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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.