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Finding the Fourth Proportional to 472,505.48, 708,536.56 and 172,776.45

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Solution

The fourth proportional to 472,505.48, 708,536.56 and 172,776.45 is: 259,083.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,505.48 : 708,536.56 = 172,776.45 : x
  2. Step 2: Convert to fraction form
    472,505.48/708,536.56 = 172,776.45/x
  3. Step 3: Cross multiply
    472,505.48x = 708,536.56 × 172,776.45
  4. Step 4: Simplify right side
    472,505.48x = 122,418,431,532.01
  5. Step 5: Solve for x
    x = 122,418,431,532.01/472,505.48
  6. Step 6: Final answer
    x = 259,083.62

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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.