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Finding the Fourth Proportional to 487,814.70, 673,167.41 and 270,032.87

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Solution

The fourth proportional to 487,814.70, 673,167.41 and 270,032.87 is: 372,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,814.70 : 673,167.41 = 270,032.87 : x
  2. Step 2: Convert to fraction form
    487,814.70/673,167.41 = 270,032.87/x
  3. Step 3: Cross multiply
    487,814.70x = 673,167.41 × 270,032.87
  4. Step 4: Simplify right side
    487,814.70x = 181,777,329,058.14
  5. Step 5: Solve for x
    x = 181,777,329,058.14/487,814.70
  6. Step 6: Final answer
    x = 372,636.02

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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.