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Finding the Fourth Proportional to 514,881.10, 772,102.95 and 248,723.20

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Solution

The fourth proportional to 514,881.10, 772,102.95 and 248,723.20 is: 372,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,881.10 : 772,102.95 = 248,723.20 : x
  2. Step 2: Convert to fraction form
    514,881.10/772,102.95 = 248,723.20/x
  3. Step 3: Cross multiply
    514,881.10x = 772,102.95 × 248,723.20
  4. Step 4: Simplify right side
    514,881.10x = 192,039,916,453.44
  5. Step 5: Solve for x
    x = 192,039,916,453.44/514,881.10
  6. Step 6: Final answer
    x = 372,979.15

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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.