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Finding the Fourth Proportional to 542,914.25, 813,945.51 and 342,814.22

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Solution

The fourth proportional to 542,914.25, 813,945.51 and 342,814.22 is: 513,952.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,914.25 : 813,945.51 = 342,814.22 : x
  2. Step 2: Convert to fraction form
    542,914.25/813,945.51 = 342,814.22/x
  3. Step 3: Cross multiply
    542,914.25x = 813,945.51 × 342,814.22
  4. Step 4: Simplify right side
    542,914.25x = 279,032,098,694.16
  5. Step 5: Solve for x
    x = 279,032,098,694.16/542,914.25
  6. Step 6: Final answer
    x = 513,952.44

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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.