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Finding the Fourth Proportional to 347,607.90, 487,350.90 and 347,607.90

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Solution

The fourth proportional to 347,607.90, 487,350.90 and 347,607.90 is: 487,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,607.90 : 487,350.90 = 347,607.90 : x
  2. Step 2: Convert to fraction form
    347,607.90/487,350.90 = 347,607.90/x
  3. Step 3: Cross multiply
    347,607.90x = 487,350.90 × 347,607.90
  4. Step 4: Simplify right side
    347,607.90x = 169,407,022,912.11
  5. Step 5: Solve for x
    x = 169,407,022,912.11/347,607.90
  6. Step 6: Final answer
    x = 487,350.90

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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.