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Finding the Fourth Proportional to 443,442.78, 611,951.06 and 242,238.78

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Solution

The fourth proportional to 443,442.78, 611,951.06 and 242,238.78 is: 334,289.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,442.78 : 611,951.06 = 242,238.78 : x
  2. Step 2: Convert to fraction form
    443,442.78/611,951.06 = 242,238.78/x
  3. Step 3: Cross multiply
    443,442.78x = 611,951.06 × 242,238.78
  4. Step 4: Simplify right side
    443,442.78x = 148,238,278,194.11
  5. Step 5: Solve for x
    x = 148,238,278,194.11/443,442.78
  6. Step 6: Final answer
    x = 334,289.53

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1.5x scale

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.