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Finding the Fourth Proportional to 335,778.94, 503,723.12 and 99,145.54

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Solution

The fourth proportional to 335,778.94, 503,723.12 and 99,145.54 is: 148,734.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,778.94 : 503,723.12 = 99,145.54 : x
  2. Step 2: Convert to fraction form
    335,778.94/503,723.12 = 99,145.54/x
  3. Step 3: Cross multiply
    335,778.94x = 503,723.12 × 99,145.54
  4. Step 4: Simplify right side
    335,778.94x = 49,941,898,472.13
  5. Step 5: Solve for x
    x = 49,941,898,472.13/335,778.94
  6. Step 6: Final answer
    x = 148,734.46

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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.