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Finding the Fourth Proportional to 328,498.20, 492,632.10 and 170,674.20

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Solution

The fourth proportional to 328,498.20, 492,632.10 and 170,674.20 is: 255,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,498.20 : 492,632.10 = 170,674.20 : x
  2. Step 2: Convert to fraction form
    328,498.20/492,632.10 = 170,674.20/x
  3. Step 3: Cross multiply
    328,498.20x = 492,632.10 × 170,674.20
  4. Step 4: Simplify right side
    328,498.20x = 84,079,589,561.82
  5. Step 5: Solve for x
    x = 84,079,589,561.82/328,498.20
  6. Step 6: Final answer
    x = 255,951.45

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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.