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Finding the Fourth Proportional to 576,317.40, 863,957.70 and 376,733.40

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Solution

The fourth proportional to 576,317.40, 863,957.70 and 376,733.40 is: 564,761.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,317.40 : 863,957.70 = 376,733.40 : x
  2. Step 2: Convert to fraction form
    576,317.40/863,957.70 = 376,733.40/x
  3. Step 3: Cross multiply
    576,317.40x = 863,957.70 × 376,733.40
  4. Step 4: Simplify right side
    576,317.40x = 325,481,721,777.18
  5. Step 5: Solve for x
    x = 325,481,721,777.18/576,317.40
  6. Step 6: Final answer
    x = 564,761.23

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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.