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Finding the Fourth Proportional to 834,465.92, 1,251,796.64 and 265,647.76

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Solution

The fourth proportional to 834,465.92, 1,251,796.64 and 265,647.76 is: 398,502.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,465.92 : 1,251,796.64 = 265,647.76 : x
  2. Step 2: Convert to fraction form
    834,465.92/1,251,796.64 = 265,647.76/x
  3. Step 3: Cross multiply
    834,465.92x = 1,251,796.64 × 265,647.76
  4. Step 4: Simplify right side
    834,465.92x = 332,536,973,391.53
  5. Step 5: Solve for x
    x = 332,536,973,391.53/834,465.92
  6. Step 6: Final answer
    x = 398,502.76

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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.