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Finding the Fourth Proportional to 425,263.55, 637,673.85 and 200,563.66

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Solution

The fourth proportional to 425,263.55, 637,673.85 and 200,563.66 is: 300,741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,263.55 : 637,673.85 = 200,563.66 : x
  2. Step 2: Convert to fraction form
    425,263.55/637,673.85 = 200,563.66/x
  3. Step 3: Cross multiply
    425,263.55x = 637,673.85 × 200,563.66
  4. Step 4: Simplify right side
    425,263.55x = 127,894,198,926.14
  5. Step 5: Solve for x
    x = 127,894,198,926.14/425,263.55
  6. Step 6: Final answer
    x = 300,741.03

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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.