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Finding the Fourth Proportional to 296,774.27, 409,529.13 and 189,332.78

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Solution

The fourth proportional to 296,774.27, 409,529.13 and 189,332.78 is: 261,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,774.27 : 409,529.13 = 189,332.78 : x
  2. Step 2: Convert to fraction form
    296,774.27/409,529.13 = 189,332.78/x
  3. Step 3: Cross multiply
    296,774.27x = 409,529.13 × 189,332.78
  4. Step 4: Simplify right side
    296,774.27x = 77,537,288,673.88
  5. Step 5: Solve for x
    x = 77,537,288,673.88/296,774.27
  6. Step 6: Final answer
    x = 261,266.88

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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.