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Finding the Fourth Proportional to 443,867.76, 612,537.66 and 242,663.76

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Solution

The fourth proportional to 443,867.76, 612,537.66 and 242,663.76 is: 334,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,867.76 : 612,537.66 = 242,663.76 : x
  2. Step 2: Convert to fraction form
    443,867.76/612,537.66 = 242,663.76/x
  3. Step 3: Cross multiply
    443,867.76x = 612,537.66 × 242,663.76
  4. Step 4: Simplify right side
    443,867.76x = 148,640,691,717.20
  5. Step 5: Solve for x
    x = 148,640,691,717.20/443,867.76
  6. Step 6: Final answer
    x = 334,876.07

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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.