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Finding the Fourth Proportional to 370,379.46, 511,123.68 and 200,613.63

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Solution

The fourth proportional to 370,379.46, 511,123.68 and 200,613.63 is: 276,846.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,379.46 : 511,123.68 = 200,613.63 : x
  2. Step 2: Convert to fraction form
    370,379.46/511,123.68 = 200,613.63/x
  3. Step 3: Cross multiply
    370,379.46x = 511,123.68 × 200,613.63
  4. Step 4: Simplify right side
    370,379.46x = 102,538,376,823.76
  5. Step 5: Solve for x
    x = 102,538,376,823.76/370,379.46
  6. Step 6: Final answer
    x = 276,846.82

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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.