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Finding the Fourth Proportional to 647,071.20, 971,044.20 and 362,761.20

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Solution

The fourth proportional to 647,071.20, 971,044.20 and 362,761.20 is: 544,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,071.20 : 971,044.20 = 362,761.20 : x
  2. Step 2: Convert to fraction form
    647,071.20/971,044.20 = 362,761.20/x
  3. Step 3: Cross multiply
    647,071.20x = 971,044.20 × 362,761.20
  4. Step 4: Simplify right side
    647,071.20x = 352,257,159,245.04
  5. Step 5: Solve for x
    x = 352,257,159,245.04/647,071.20
  6. Step 6: Final answer
    x = 544,387.02

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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.