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Finding the Fourth Proportional to 293,059.20, 439,588.80 and 214,327.20

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Solution

The fourth proportional to 293,059.20, 439,588.80 and 214,327.20 is: 321,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,059.20 : 439,588.80 = 214,327.20 : x
  2. Step 2: Convert to fraction form
    293,059.20/439,588.80 = 214,327.20/x
  3. Step 3: Cross multiply
    293,059.20x = 439,588.80 × 214,327.20
  4. Step 4: Simplify right side
    293,059.20x = 94,215,836,655.36
  5. Step 5: Solve for x
    x = 94,215,836,655.36/293,059.20
  6. Step 6: Final answer
    x = 321,490.80

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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.