Home / 514,045.56-771,288.87-198,723.90

Finding the Fourth Proportional to 514,045.56, 771,288.87 and 198,723.90

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Solution

The fourth proportional to 514,045.56, 771,288.87 and 198,723.90 is: 298,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,045.56 : 771,288.87 = 198,723.90 : x
  2. Step 2: Convert to fraction form
    514,045.56/771,288.87 = 198,723.90/x
  3. Step 3: Cross multiply
    514,045.56x = 771,288.87 × 198,723.90
  4. Step 4: Simplify right side
    514,045.56x = 153,273,532,272.99
  5. Step 5: Solve for x
    x = 153,273,532,272.99/514,045.56
  6. Step 6: Final answer
    x = 298,171.10

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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.