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Finding the Fourth Proportional to 449,600.40, 674,400.60 and 432,104.40

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Solution

The fourth proportional to 449,600.40, 674,400.60 and 432,104.40 is: 648,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,600.40 : 674,400.60 = 432,104.40 : x
  2. Step 2: Convert to fraction form
    449,600.40/674,400.60 = 432,104.40/x
  3. Step 3: Cross multiply
    449,600.40x = 674,400.60 × 432,104.40
  4. Step 4: Simplify right side
    449,600.40x = 291,411,466,622.64
  5. Step 5: Solve for x
    x = 291,411,466,622.64/449,600.40
  6. Step 6: Final answer
    x = 648,156.60

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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.