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Finding the Fourth Proportional to 570,787.18, 787,692.09 and 344,388.94

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Solution

The fourth proportional to 570,787.18, 787,692.09 and 344,388.94 is: 475,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,787.18 : 787,692.09 = 344,388.94 : x
  2. Step 2: Convert to fraction form
    570,787.18/787,692.09 = 344,388.94/x
  3. Step 3: Cross multiply
    570,787.18x = 787,692.09 × 344,388.94
  4. Step 4: Simplify right side
    570,787.18x = 271,272,443,243.71
  5. Step 5: Solve for x
    x = 271,272,443,243.71/570,787.18
  6. Step 6: Final answer
    x = 475,260.23

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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.