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Finding the Fourth Proportional to 573,787.97, 791,816.36 and 315,649.83

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Solution

The fourth proportional to 573,787.97, 791,816.36 and 315,649.83 is: 435,590.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,787.97 : 791,816.36 = 315,649.83 : x
  2. Step 2: Convert to fraction form
    573,787.97/791,816.36 = 315,649.83/x
  3. Step 3: Cross multiply
    573,787.97x = 791,816.36 × 315,649.83
  4. Step 4: Simplify right side
    573,787.97x = 249,936,697,846.97
  5. Step 5: Solve for x
    x = 249,936,697,846.97/573,787.97
  6. Step 6: Final answer
    x = 435,590.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.