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Finding the Fourth Proportional to 547,820.48, 820,598.72 and 322,486.56

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Solution

The fourth proportional to 547,820.48, 820,598.72 and 322,486.56 is: 483,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,820.48 : 820,598.72 = 322,486.56 : x
  2. Step 2: Convert to fraction form
    547,820.48/820,598.72 = 322,486.56/x
  3. Step 3: Cross multiply
    547,820.48x = 820,598.72 × 322,486.56
  4. Step 4: Simplify right side
    547,820.48x = 264,632,058,353.20
  5. Step 5: Solve for x
    x = 264,632,058,353.20/547,820.48
  6. Step 6: Final answer
    x = 483,063.46

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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.