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Finding the Fourth Proportional to 525,680.92, 725,439.09 and 283,963.44

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Solution

The fourth proportional to 525,680.92, 725,439.09 and 283,963.44 is: 391,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,680.92 : 725,439.09 = 283,963.44 : x
  2. Step 2: Convert to fraction form
    525,680.92/725,439.09 = 283,963.44/x
  3. Step 3: Cross multiply
    525,680.92x = 725,439.09 × 283,963.44
  4. Step 4: Simplify right side
    525,680.92x = 205,998,179,506.87
  5. Step 5: Solve for x
    x = 205,998,179,506.87/525,680.92
  6. Step 6: Final answer
    x = 391,869.24

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1.5x scale

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.