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Finding the Fourth Proportional to 328,008.20, 492,098.70 and 117,624.20

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Solution

The fourth proportional to 328,008.20, 492,098.70 and 117,624.20 is: 176,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,008.20 : 492,098.70 = 117,624.20 : x
  2. Step 2: Convert to fraction form
    328,008.20/492,098.70 = 117,624.20/x
  3. Step 3: Cross multiply
    328,008.20x = 492,098.70 × 117,624.20
  4. Step 4: Simplify right side
    328,008.20x = 57,882,715,908.54
  5. Step 5: Solve for x
    x = 57,882,715,908.54/328,008.20
  6. Step 6: Final answer
    x = 176,467.28

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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.