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Finding the Fourth Proportional to 531,987.48, 734,142.42 and 341,000.73

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Solution

The fourth proportional to 531,987.48, 734,142.42 and 341,000.73 is: 470,580.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,987.48 : 734,142.42 = 341,000.73 : x
  2. Step 2: Convert to fraction form
    531,987.48/734,142.42 = 341,000.73/x
  3. Step 3: Cross multiply
    531,987.48x = 734,142.42 × 341,000.73
  4. Step 4: Simplify right side
    531,987.48x = 250,343,101,143.97
  5. Step 5: Solve for x
    x = 250,343,101,143.97/531,987.48
  6. Step 6: Final answer
    x = 470,580.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.