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Finding the Fourth Proportional to 573,787.59, 791,815.85 and 315,649.45

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Solution

The fourth proportional to 573,787.59, 791,815.85 and 315,649.45 is: 435,590.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,787.59 : 791,815.85 = 315,649.45 : x
  2. Step 2: Convert to fraction form
    573,787.59/791,815.85 = 315,649.45/x
  3. Step 3: Cross multiply
    573,787.59x = 791,815.85 × 315,649.45
  4. Step 4: Simplify right side
    573,787.59x = 249,936,233,996.00
  5. Step 5: Solve for x
    x = 249,936,233,996.00/573,787.59
  6. Step 6: Final answer
    x = 435,590.17

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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.