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Finding the Fourth Proportional to 374,019.20, 561,028.80 and 368,114.30

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Solution

The fourth proportional to 374,019.20, 561,028.80 and 368,114.30 is: 552,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,019.20 : 561,028.80 = 368,114.30 : x
  2. Step 2: Convert to fraction form
    374,019.20/561,028.80 = 368,114.30/x
  3. Step 3: Cross multiply
    374,019.20x = 561,028.80 × 368,114.30
  4. Step 4: Simplify right side
    374,019.20x = 206,522,723,991.84
  5. Step 5: Solve for x
    x = 206,522,723,991.84/374,019.20
  6. Step 6: Final answer
    x = 552,171.45

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1.5x scale

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.