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Finding the Fourth Proportional to 478,822.20, 718,233.30 and 337,104.60

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Solution

The fourth proportional to 478,822.20, 718,233.30 and 337,104.60 is: 505,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,822.20 : 718,233.30 = 337,104.60 : x
  2. Step 2: Convert to fraction form
    478,822.20/718,233.30 = 337,104.60/x
  3. Step 3: Cross multiply
    478,822.20x = 718,233.30 × 337,104.60
  4. Step 4: Simplify right side
    478,822.20x = 242,119,749,303.18
  5. Step 5: Solve for x
    x = 242,119,749,303.18/478,822.20
  6. Step 6: Final answer
    x = 505,656.90

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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.