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Finding the Fourth Proportional to 347,777.68, 521,313.60 and 197,707.92

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Solution

The fourth proportional to 347,777.68, 521,313.60 and 197,707.92 is: 296,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,777.68 : 521,313.60 = 197,707.92 : x
  2. Step 2: Convert to fraction form
    347,777.68/521,313.60 = 197,707.92/x
  3. Step 3: Cross multiply
    347,777.68x = 521,313.60 × 197,707.92
  4. Step 4: Simplify right side
    347,777.68x = 103,067,827,523.71
  5. Step 5: Solve for x
    x = 103,067,827,523.71/347,777.68
  6. Step 6: Final answer
    x = 296,361.25

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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.