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Finding the Fourth Proportional to 483,915.02, 724,453.08 and 339,319.46

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Solution

The fourth proportional to 483,915.02, 724,453.08 and 339,319.46 is: 507,983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,915.02 : 724,453.08 = 339,319.46 : x
  2. Step 2: Convert to fraction form
    483,915.02/724,453.08 = 339,319.46/x
  3. Step 3: Cross multiply
    483,915.02x = 724,453.08 × 339,319.46
  4. Step 4: Simplify right side
    483,915.02x = 245,821,027,900.94
  5. Step 5: Solve for x
    x = 245,821,027,900.94/483,915.02
  6. Step 6: Final answer
    x = 507,983.88

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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.