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Finding the Fourth Proportional to 576,732.80, 865,250.40 and 221,758.40

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Solution

The fourth proportional to 576,732.80, 865,250.40 and 221,758.40 is: 332,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,732.80 : 865,250.40 = 221,758.40 : x
  2. Step 2: Convert to fraction form
    576,732.80/865,250.40 = 221,758.40/x
  3. Step 3: Cross multiply
    576,732.80x = 865,250.40 × 221,758.40
  4. Step 4: Simplify right side
    576,732.80x = 191,876,544,303.36
  5. Step 5: Solve for x
    x = 191,876,544,303.36/576,732.80
  6. Step 6: Final answer
    x = 332,695.74

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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.