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Finding the Fourth Proportional to 358,882.40, 537,740.40 and 308,727.20

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Solution

The fourth proportional to 358,882.40, 537,740.40 and 308,727.20 is: 462,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,882.40 : 537,740.40 = 308,727.20 : x
  2. Step 2: Convert to fraction form
    358,882.40/537,740.40 = 308,727.20/x
  3. Step 3: Cross multiply
    358,882.40x = 537,740.40 × 308,727.20
  4. Step 4: Simplify right side
    358,882.40x = 166,015,088,018.88
  5. Step 5: Solve for x
    x = 166,015,088,018.88/358,882.40
  6. Step 6: Final answer
    x = 462,589.10

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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.