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Finding the Fourth Proportional to 514,251.56, 709,647.54 and 281,674.80

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Solution

The fourth proportional to 514,251.56, 709,647.54 and 281,674.80 is: 388,700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,251.56 : 709,647.54 = 281,674.80 : x
  2. Step 2: Convert to fraction form
    514,251.56/709,647.54 = 281,674.80/x
  3. Step 3: Cross multiply
    514,251.56x = 709,647.54 × 281,674.80
  4. Step 4: Simplify right side
    514,251.56x = 199,889,828,899.99
  5. Step 5: Solve for x
    x = 199,889,828,899.99/514,251.56
  6. Step 6: Final answer
    x = 388,700.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.