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Finding the Fourth Proportional to 366,304.66, 505,004.16 and 313,160.56

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Solution

The fourth proportional to 366,304.66, 505,004.16 and 313,160.56 is: 431,737.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,304.66 : 505,004.16 = 313,160.56 : x
  2. Step 2: Convert to fraction form
    366,304.66/505,004.16 = 313,160.56/x
  3. Step 3: Cross multiply
    366,304.66x = 505,004.16 × 313,160.56
  4. Step 4: Simplify right side
    366,304.66x = 158,147,385,547.93
  5. Step 5: Solve for x
    x = 158,147,385,547.93/366,304.66
  6. Step 6: Final answer
    x = 431,737.30

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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.