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Finding the Fourth Proportional to 536,017.68, 808,889.94 and 518,171.76

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Solution

The fourth proportional to 536,017.68, 808,889.94 and 518,171.76 is: 781,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,017.68 : 808,889.94 = 518,171.76 : x
  2. Step 2: Convert to fraction form
    536,017.68/808,889.94 = 518,171.76/x
  3. Step 3: Cross multiply
    536,017.68x = 808,889.94 × 518,171.76
  4. Step 4: Simplify right side
    536,017.68x = 419,143,923,856.09
  5. Step 5: Solve for x
    x = 419,143,923,856.09/536,017.68
  6. Step 6: Final answer
    x = 781,959.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.