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Finding the Fourth Proportional to 400,159.72, 599,573.22 and 281,581.93

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Solution

The fourth proportional to 400,159.72, 599,573.22 and 281,581.93 is: 421,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,159.72 : 599,573.22 = 281,581.93 : x
  2. Step 2: Convert to fraction form
    400,159.72/599,573.22 = 281,581.93/x
  3. Step 3: Cross multiply
    400,159.72x = 599,573.22 × 281,581.93
  4. Step 4: Simplify right side
    400,159.72x = 168,828,984,463.92
  5. Step 5: Solve for x
    x = 168,828,984,463.92/400,159.72
  6. Step 6: Final answer
    x = 421,903.99

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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.