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Finding the Fourth Proportional to 547,427.25, 755,783.15 and 375,627.47

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Solution

The fourth proportional to 547,427.25, 755,783.15 and 375,627.47 is: 518,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,427.25 : 755,783.15 = 375,627.47 : x
  2. Step 2: Convert to fraction form
    547,427.25/755,783.15 = 375,627.47/x
  3. Step 3: Cross multiply
    547,427.25x = 755,783.15 × 375,627.47
  4. Step 4: Simplify right side
    547,427.25x = 283,892,906,846.08
  5. Step 5: Solve for x
    x = 283,892,906,846.08/547,427.25
  6. Step 6: Final answer
    x = 518,594.77

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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.