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Finding the Fourth Proportional to 487,633.51, 673,069.51 and 283,723.82

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Solution

The fourth proportional to 487,633.51, 673,069.51 and 283,723.82 is: 391,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,633.51 : 673,069.51 = 283,723.82 : x
  2. Step 2: Convert to fraction form
    487,633.51/673,069.51 = 283,723.82/x
  3. Step 3: Cross multiply
    487,633.51x = 673,069.51 × 283,723.82
  4. Step 4: Simplify right side
    487,633.51x = 190,965,852,502.73
  5. Step 5: Solve for x
    x = 190,965,852,502.73/487,633.51
  6. Step 6: Final answer
    x = 391,617.57

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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.