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Finding the Fourth Proportional to 439,832.60, 617,009.80 and 439,832.60

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Solution

The fourth proportional to 439,832.60, 617,009.80 and 439,832.60 is: 617,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,832.60 : 617,009.80 = 439,832.60 : x
  2. Step 2: Convert to fraction form
    439,832.60/617,009.80 = 439,832.60/x
  3. Step 3: Cross multiply
    439,832.60x = 617,009.80 × 439,832.60
  4. Step 4: Simplify right side
    439,832.60x = 271,381,024,559.48
  5. Step 5: Solve for x
    x = 271,381,024,559.48/439,832.60
  6. Step 6: Final answer
    x = 617,009.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.