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Finding the Fourth Proportional to 500,926.74, 691,287.28 and 271,491.39

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Solution

The fourth proportional to 500,926.74, 691,287.28 and 271,491.39 is: 374,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,926.74 : 691,287.28 = 271,491.39 : x
  2. Step 2: Convert to fraction form
    500,926.74/691,287.28 = 271,491.39/x
  3. Step 3: Cross multiply
    500,926.74x = 691,287.28 × 271,491.39
  4. Step 4: Simplify right side
    500,926.74x = 187,678,544,536.52
  5. Step 5: Solve for x
    x = 187,678,544,536.52/500,926.74
  6. Step 6: Final answer
    x = 374,662.66

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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.