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Finding the Fourth Proportional to 576,315.40, 863,954.70 and 376,731.40

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Solution

The fourth proportional to 576,315.40, 863,954.70 and 376,731.40 is: 564,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,315.40 : 863,954.70 = 376,731.40 : x
  2. Step 2: Convert to fraction form
    576,315.40/863,954.70 = 376,731.40/x
  3. Step 3: Cross multiply
    576,315.40x = 863,954.70 × 376,731.40
  4. Step 4: Simplify right side
    576,315.40x = 325,478,863,667.58
  5. Step 5: Solve for x
    x = 325,478,863,667.58/576,315.40
  6. Step 6: Final answer
    x = 564,758.23

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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.