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Finding the Fourth Proportional to 483,614.60, 725,421.90 and 262,430.60

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Solution

The fourth proportional to 483,614.60, 725,421.90 and 262,430.60 is: 393,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,614.60 : 725,421.90 = 262,430.60 : x
  2. Step 2: Convert to fraction form
    483,614.60/725,421.90 = 262,430.60/x
  3. Step 3: Cross multiply
    483,614.60x = 725,421.90 × 262,430.60
  4. Step 4: Simplify right side
    483,614.60x = 190,372,904,470.14
  5. Step 5: Solve for x
    x = 190,372,904,470.14/483,614.60
  6. Step 6: Final answer
    x = 393,645.90

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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.