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Finding the Fourth Proportional to 374,477.76, 516,790.56 and 204,720.96

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Solution

The fourth proportional to 374,477.76, 516,790.56 and 204,720.96 is: 282,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,477.76 : 516,790.56 = 204,720.96 : x
  2. Step 2: Convert to fraction form
    374,477.76/516,790.56 = 204,720.96/x
  3. Step 3: Cross multiply
    374,477.76x = 516,790.56 × 204,720.96
  4. Step 4: Simplify right side
    374,477.76x = 105,797,859,562.14
  5. Step 5: Solve for x
    x = 105,797,859,562.14/374,477.76
  6. Step 6: Final answer
    x = 282,521.08

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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.