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Finding the Fourth Proportional to 425,090.25, 637,635.38 and 175,778.73

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Solution

The fourth proportional to 425,090.25, 637,635.38 and 175,778.73 is: 263,668.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,090.25 : 637,635.38 = 175,778.73 : x
  2. Step 2: Convert to fraction form
    425,090.25/637,635.38 = 175,778.73/x
  3. Step 3: Cross multiply
    425,090.25x = 637,635.38 × 175,778.73
  4. Step 4: Simplify right side
    425,090.25x = 112,082,736,420.57
  5. Step 5: Solve for x
    x = 112,082,736,420.57/425,090.25
  6. Step 6: Final answer
    x = 263,668.10

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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.