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Finding the Fourth Proportional to 576,324.92, 864,599.34 and 221,312.84

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Solution

The fourth proportional to 576,324.92, 864,599.34 and 221,312.84 is: 332,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,324.92 : 864,599.34 = 221,312.84 : x
  2. Step 2: Convert to fraction form
    576,324.92/864,599.34 = 221,312.84/x
  3. Step 3: Cross multiply
    576,324.92x = 864,599.34 × 221,312.84
  4. Step 4: Simplify right side
    576,324.92x = 191,346,935,397.53
  5. Step 5: Solve for x
    x = 191,346,935,397.53/576,324.92
  6. Step 6: Final answer
    x = 332,012.25

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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.