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Finding the Fourth Proportional to 541,975.40, 813,884.70 and 401,892.20

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Solution

The fourth proportional to 541,975.40, 813,884.70 and 401,892.20 is: 603,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,975.40 : 813,884.70 = 401,892.20 : x
  2. Step 2: Convert to fraction form
    541,975.40/813,884.70 = 401,892.20/x
  3. Step 3: Cross multiply
    541,975.40x = 813,884.70 × 401,892.20
  4. Step 4: Simplify right side
    541,975.40x = 327,093,912,629.34
  5. Step 5: Solve for x
    x = 327,093,912,629.34/541,975.40
  6. Step 6: Final answer
    x = 603,521.70

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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.