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Finding the Fourth Proportional to 443,668.72, 612,261.48 and 242,464.72

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Solution

The fourth proportional to 443,668.72, 612,261.48 and 242,464.72 is: 334,600.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,668.72 : 612,261.48 = 242,464.72 : x
  2. Step 2: Convert to fraction form
    443,668.72/612,261.48 = 242,464.72/x
  3. Step 3: Cross multiply
    443,668.72x = 612,261.48 × 242,464.72
  4. Step 4: Simplify right side
    443,668.72x = 148,451,808,314.99
  5. Step 5: Solve for x
    x = 148,451,808,314.99/443,668.72
  6. Step 6: Final answer
    x = 334,600.57

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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.