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Finding the Fourth Proportional to 447,607.22, 617,709.44 and 275,461.16

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Solution

The fourth proportional to 447,607.22, 617,709.44 and 275,461.16 is: 380,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,607.22 : 617,709.44 = 275,461.16 : x
  2. Step 2: Convert to fraction form
    447,607.22/617,709.44 = 275,461.16/x
  3. Step 3: Cross multiply
    447,607.22x = 617,709.44 × 275,461.16
  4. Step 4: Simplify right side
    447,607.22x = 170,154,956,485.46
  5. Step 5: Solve for x
    x = 170,154,956,485.46/447,607.22
  6. Step 6: Final answer
    x = 380,143.46

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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.