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Finding the Fourth Proportional to 554,792.70, 831,703.05 and 376,722.30

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Solution

The fourth proportional to 554,792.70, 831,703.05 and 376,722.30 is: 564,753.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,792.70 : 831,703.05 = 376,722.30 : x
  2. Step 2: Convert to fraction form
    554,792.70/831,703.05 = 376,722.30/x
  3. Step 3: Cross multiply
    554,792.70x = 831,703.05 × 376,722.30
  4. Step 4: Simplify right side
    554,792.70x = 313,321,085,913.02
  5. Step 5: Solve for x
    x = 313,321,085,913.02/554,792.70
  6. Step 6: Final answer
    x = 564,753.44

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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.