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Finding the Fourth Proportional to 405,806.82, 560,192.78 and 242,520.93

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Solution

The fourth proportional to 405,806.82, 560,192.78 and 242,520.93 is: 334,786.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,806.82 : 560,192.78 = 242,520.93 : x
  2. Step 2: Convert to fraction form
    405,806.82/560,192.78 = 242,520.93/x
  3. Step 3: Cross multiply
    405,806.82x = 560,192.78 × 242,520.93
  4. Step 4: Simplify right side
    405,806.82x = 135,858,472,772.28
  5. Step 5: Solve for x
    x = 135,858,472,772.28/405,806.82
  6. Step 6: Final answer
    x = 334,786.08

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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.