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Finding the Fourth Proportional to 647,047.20, 971,008.20 and 362,737.20

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Solution

The fourth proportional to 647,047.20, 971,008.20 and 362,737.20 is: 544,351.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,047.20 : 971,008.20 = 362,737.20 : x
  2. Step 2: Convert to fraction form
    647,047.20/971,008.20 = 362,737.20/x
  3. Step 3: Cross multiply
    647,047.20x = 971,008.20 × 362,737.20
  4. Step 4: Simplify right side
    647,047.20x = 352,220,795,645.04
  5. Step 5: Solve for x
    x = 352,220,795,645.04/647,047.20
  6. Step 6: Final answer
    x = 544,351.01

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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.