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Finding the Fourth Proportional to 617,792.21, 927,343.39 and 547,173.30

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Solution

The fourth proportional to 617,792.21, 927,343.39 and 547,173.30 is: 821,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,792.21 : 927,343.39 = 547,173.30 : x
  2. Step 2: Convert to fraction form
    617,792.21/927,343.39 = 547,173.30/x
  3. Step 3: Cross multiply
    617,792.21x = 927,343.39 × 547,173.30
  4. Step 4: Simplify right side
    617,792.21x = 507,417,542,939.49
  5. Step 5: Solve for x
    x = 507,417,542,939.49/617,792.21
  6. Step 6: Final answer
    x = 821,340.14

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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.