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Finding the Fourth Proportional to 474,089.21, 711,134.50 and 193,606.46

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Solution

The fourth proportional to 474,089.21, 711,134.50 and 193,606.46 is: 290,409.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,089.21 : 711,134.50 = 193,606.46 : x
  2. Step 2: Convert to fraction form
    474,089.21/711,134.50 = 193,606.46/x
  3. Step 3: Cross multiply
    474,089.21x = 711,134.50 × 193,606.46
  4. Step 4: Simplify right side
    474,089.21x = 137,680,233,128.87
  5. Step 5: Solve for x
    x = 137,680,233,128.87/474,089.21
  6. Step 6: Final answer
    x = 290,409.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.