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Finding the Fourth Proportional to 540,184.92, 810,452.34 and 259,665.72

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Solution

The fourth proportional to 540,184.92, 810,452.34 and 259,665.72 is: 389,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,184.92 : 810,452.34 = 259,665.72 : x
  2. Step 2: Convert to fraction form
    540,184.92/810,452.34 = 259,665.72/x
  3. Step 3: Cross multiply
    540,184.92x = 810,452.34 × 259,665.72
  4. Step 4: Simplify right side
    540,184.92x = 210,446,690,391.79
  5. Step 5: Solve for x
    x = 210,446,690,391.79/540,184.92
  6. Step 6: Final answer
    x = 389,582.68

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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.