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Finding the Fourth Proportional to 576,334.19, 864,542.81 and 221,348.22

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Solution

The fourth proportional to 576,334.19, 864,542.81 and 221,348.22 is: 332,038.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,334.19 : 864,542.81 = 221,348.22 : x
  2. Step 2: Convert to fraction form
    576,334.19/864,542.81 = 221,348.22/x
  3. Step 3: Cross multiply
    576,334.19x = 864,542.81 × 221,348.22
  4. Step 4: Simplify right side
    576,334.19x = 191,365,009,418.63
  5. Step 5: Solve for x
    x = 191,365,009,418.63/576,334.19
  6. Step 6: Final answer
    x = 332,038.27

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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.