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Finding the Fourth Proportional to 443,778.75, 612,414.68 and 242,574.75

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Solution

The fourth proportional to 443,778.75, 612,414.68 and 242,574.75 is: 334,753.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,778.75 : 612,414.68 = 242,574.75 : x
  2. Step 2: Convert to fraction form
    443,778.75/612,414.68 = 242,574.75/x
  3. Step 3: Cross multiply
    443,778.75x = 612,414.68 × 242,574.75
  4. Step 4: Simplify right side
    443,778.75x = 148,556,336,684.46
  5. Step 5: Solve for x
    x = 148,556,336,684.46/443,778.75
  6. Step 6: Final answer
    x = 334,753.16

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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.