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Finding the Fourth Proportional to 647,362.80, 971,044.20 and 584,377.20

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Solution

The fourth proportional to 647,362.80, 971,044.20 and 584,377.20 is: 876,565.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,362.80 : 971,044.20 = 584,377.20 : x
  2. Step 2: Convert to fraction form
    647,362.80/971,044.20 = 584,377.20/x
  3. Step 3: Cross multiply
    647,362.80x = 971,044.20 × 584,377.20
  4. Step 4: Simplify right side
    647,362.80x = 567,456,090,672.24
  5. Step 5: Solve for x
    x = 567,456,090,672.24/647,362.80
  6. Step 6: Final answer
    x = 876,565.80

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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.