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Finding the Fourth Proportional to 316,859.01, 472,462.13 and 281,651.04

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Solution

The fourth proportional to 316,859.01, 472,462.13 and 281,651.04 is: 419,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,859.01 : 472,462.13 = 281,651.04 : x
  2. Step 2: Convert to fraction form
    316,859.01/472,462.13 = 281,651.04/x
  3. Step 3: Cross multiply
    316,859.01x = 472,462.13 × 281,651.04
  4. Step 4: Simplify right side
    316,859.01x = 133,069,450,979.24
  5. Step 5: Solve for x
    x = 133,069,450,979.24/316,859.01
  6. Step 6: Final answer
    x = 419,964.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.