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Finding the Fourth Proportional to 405,553.28, 608,121.28 and 237,110.72

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Solution

The fourth proportional to 405,553.28, 608,121.28 and 237,110.72 is: 355,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,553.28 : 608,121.28 = 237,110.72 : x
  2. Step 2: Convert to fraction form
    405,553.28/608,121.28 = 237,110.72/x
  3. Step 3: Cross multiply
    405,553.28x = 608,121.28 × 237,110.72
  4. Step 4: Simplify right side
    405,553.28x = 144,192,074,548.12
  5. Step 5: Solve for x
    x = 144,192,074,548.12/405,553.28
  6. Step 6: Final answer
    x = 355,544.10

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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.