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Finding the Fourth Proportional to 524,808.20, 787,276.20 and 187,884.20

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Solution

The fourth proportional to 524,808.20, 787,276.20 and 187,884.20 is: 281,849.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,808.20 : 787,276.20 = 187,884.20 : x
  2. Step 2: Convert to fraction form
    524,808.20/787,276.20 = 187,884.20/x
  3. Step 3: Cross multiply
    524,808.20x = 787,276.20 × 187,884.20
  4. Step 4: Simplify right side
    524,808.20x = 147,916,759,016.04
  5. Step 5: Solve for x
    x = 147,916,759,016.04/524,808.20
  6. Step 6: Final answer
    x = 281,849.18

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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.