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Finding the Fourth Proportional to 370,613.61, 511,447.23 and 200,847.74

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Solution

The fourth proportional to 370,613.61, 511,447.23 and 200,847.74 is: 277,170.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,613.61 : 511,447.23 = 200,847.74 : x
  2. Step 2: Convert to fraction form
    370,613.61/511,447.23 = 200,847.74/x
  3. Step 3: Cross multiply
    370,613.61x = 511,447.23 × 200,847.74
  4. Step 4: Simplify right side
    370,613.61x = 102,723,017,717.52
  5. Step 5: Solve for x
    x = 102,723,017,717.52/370,613.61
  6. Step 6: Final answer
    x = 277,170.12

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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.