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Finding the Fourth Proportional to 440,020.56, 607,228.32 and 238,816.56

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Solution

The fourth proportional to 440,020.56, 607,228.32 and 238,816.56 is: 329,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,020.56 : 607,228.32 = 238,816.56 : x
  2. Step 2: Convert to fraction form
    440,020.56/607,228.32 = 238,816.56/x
  3. Step 3: Cross multiply
    440,020.56x = 607,228.32 × 238,816.56
  4. Step 4: Simplify right side
    440,020.56x = 145,016,178,516.98
  5. Step 5: Solve for x
    x = 145,016,178,516.98/440,020.56
  6. Step 6: Final answer
    x = 329,566.82

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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.