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Finding the Fourth Proportional to 356,513.07, 534,409.55 and 223,486.56

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Solution

The fourth proportional to 356,513.07, 534,409.55 and 223,486.56 is: 335,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,513.07 : 534,409.55 = 223,486.56 : x
  2. Step 2: Convert to fraction form
    356,513.07/534,409.55 = 223,486.56/x
  3. Step 3: Cross multiply
    356,513.07x = 534,409.55 × 223,486.56
  4. Step 4: Simplify right side
    356,513.07x = 119,433,351,960.65
  5. Step 5: Solve for x
    x = 119,433,351,960.65/356,513.07
  6. Step 6: Final answer
    x = 335,004.13

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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.