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Finding the Fourth Proportional to 630,271.26, 945,262.90 and 180,988.56

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Solution

The fourth proportional to 630,271.26, 945,262.90 and 180,988.56 is: 271,441.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,271.26 : 945,262.90 = 180,988.56 : x
  2. Step 2: Convert to fraction form
    630,271.26/945,262.90 = 180,988.56/x
  3. Step 3: Cross multiply
    630,271.26x = 945,262.90 × 180,988.56
  4. Step 4: Simplify right side
    630,271.26x = 171,081,771,092.42
  5. Step 5: Solve for x
    x = 171,081,771,092.42/630,271.26
  6. Step 6: Final answer
    x = 271,441.49

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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.