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Finding the Fourth Proportional to 350,513.61, 483,708.18 and 189,368.16

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Solution

The fourth proportional to 350,513.61, 483,708.18 and 189,368.16 is: 261,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,513.61 : 483,708.18 = 189,368.16 : x
  2. Step 2: Convert to fraction form
    350,513.61/483,708.18 = 189,368.16/x
  3. Step 3: Cross multiply
    350,513.61x = 483,708.18 × 189,368.16
  4. Step 4: Simplify right side
    350,513.61x = 91,598,928,023.55
  5. Step 5: Solve for x
    x = 91,598,928,023.55/350,513.61
  6. Step 6: Final answer
    x = 261,327.74

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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.