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Finding the Fourth Proportional to 647,325.20, 971,425.20 and 363,015.20

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Solution

The fourth proportional to 647,325.20, 971,425.20 and 363,015.20 is: 544,768.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,325.20 : 971,425.20 = 363,015.20 : x
  2. Step 2: Convert to fraction form
    647,325.20/971,425.20 = 363,015.20/x
  3. Step 3: Cross multiply
    647,325.20x = 971,425.20 × 363,015.20
  4. Step 4: Simplify right side
    647,325.20x = 352,642,113,263.04
  5. Step 5: Solve for x
    x = 352,642,113,263.04/647,325.20
  6. Step 6: Final answer
    x = 544,768.09

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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.