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Finding the Fourth Proportional to 576,316.40, 863,956.20 and 376,732.40

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Solution

The fourth proportional to 576,316.40, 863,956.20 and 376,732.40 is: 564,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,316.40 : 863,956.20 = 376,732.40 : x
  2. Step 2: Convert to fraction form
    576,316.40/863,956.20 = 376,732.40/x
  3. Step 3: Cross multiply
    576,316.40x = 863,956.20 × 376,732.40
  4. Step 4: Simplify right side
    576,316.40x = 325,480,292,720.88
  5. Step 5: Solve for x
    x = 325,480,292,720.88/576,316.40
  6. Step 6: Final answer
    x = 564,759.73

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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.