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Finding the Fourth Proportional to 439,903.30, 617,523.50 and 439,903.30

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Solution

The fourth proportional to 439,903.30, 617,523.50 and 439,903.30 is: 617,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,903.30 : 617,523.50 = 439,903.30 : x
  2. Step 2: Convert to fraction form
    439,903.30/617,523.50 = 439,903.30/x
  3. Step 3: Cross multiply
    439,903.30x = 617,523.50 × 439,903.30
  4. Step 4: Simplify right side
    439,903.30x = 271,650,625,477.55
  5. Step 5: Solve for x
    x = 271,650,625,477.55/439,903.30
  6. Step 6: Final answer
    x = 617,523.50

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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.