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Finding the Fourth Proportional to 425,941.92, 638,912.24 and 110,399.12

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Solution

The fourth proportional to 425,941.92, 638,912.24 and 110,399.12 is: 165,598.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,941.92 : 638,912.24 = 110,399.12 : x
  2. Step 2: Convert to fraction form
    425,941.92/638,912.24 = 110,399.12/x
  3. Step 3: Cross multiply
    425,941.92x = 638,912.24 × 110,399.12
  4. Step 4: Simplify right side
    425,941.92x = 70,535,349,053.23
  5. Step 5: Solve for x
    x = 70,535,349,053.23/425,941.92
  6. Step 6: Final answer
    x = 165,598.51

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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.