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Finding the Fourth Proportional to 711,185.04, 981,527.04 and 405,372.96

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Solution

The fourth proportional to 711,185.04, 981,527.04 and 405,372.96 is: 559,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,185.04 : 981,527.04 = 405,372.96 : x
  2. Step 2: Convert to fraction form
    711,185.04/981,527.04 = 405,372.96/x
  3. Step 3: Cross multiply
    711,185.04x = 981,527.04 × 405,372.96
  4. Step 4: Simplify right side
    711,185.04x = 397,884,521,524.84
  5. Step 5: Solve for x
    x = 397,884,521,524.84/711,185.04
  6. Step 6: Final answer
    x = 559,466.94

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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.