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Finding the Fourth Proportional to 647,623.70, 971,435.55 and 363,022.10

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Solution

The fourth proportional to 647,623.70, 971,435.55 and 363,022.10 is: 544,533.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,623.70 : 971,435.55 = 363,022.10 : x
  2. Step 2: Convert to fraction form
    647,623.70/971,435.55 = 363,022.10/x
  3. Step 3: Cross multiply
    647,623.70x = 971,435.55 × 363,022.10
  4. Step 4: Simplify right side
    647,623.70x = 352,652,573,375.66
  5. Step 5: Solve for x
    x = 352,652,573,375.66/647,623.70
  6. Step 6: Final answer
    x = 544,533.15

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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.