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Finding the Fourth Proportional to 516,168.48, 712,369.92 and 301,361.76

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Solution

The fourth proportional to 516,168.48, 712,369.92 and 301,361.76 is: 415,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,168.48 : 712,369.92 = 301,361.76 : x
  2. Step 2: Convert to fraction form
    516,168.48/712,369.92 = 301,361.76/x
  3. Step 3: Cross multiply
    516,168.48x = 712,369.92 × 301,361.76
  4. Step 4: Simplify right side
    516,168.48x = 214,681,052,862.26
  5. Step 5: Solve for x
    x = 214,681,052,862.26/516,168.48
  6. Step 6: Final answer
    x = 415,912.75

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1.5x scale

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.