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Finding the Fourth Proportional to 831,251, 1,246,888.80 and 548,750.74

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Solution

The fourth proportional to 831,251, 1,246,888.80 and 548,750.74 is: 823,134.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,251 : 1,246,888.80 = 548,750.74 : x
  2. Step 2: Convert to fraction form
    831,251/1,246,888.80 = 548,750.74/x
  3. Step 3: Cross multiply
    831,251x = 1,246,888.80 × 548,750.74
  4. Step 4: Simplify right side
    831,251x = 684,231,151,697.71
  5. Step 5: Solve for x
    x = 684,231,151,697.71/831,251
  6. Step 6: Final answer
    x = 823,134.23

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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.