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Finding the Fourth Proportional to 487,735.39, 673,100.99 and 272,862.64

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Solution

The fourth proportional to 487,735.39, 673,100.99 and 272,862.64 is: 376,565.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,735.39 : 673,100.99 = 272,862.64 : x
  2. Step 2: Convert to fraction form
    487,735.39/673,100.99 = 272,862.64/x
  3. Step 3: Cross multiply
    487,735.39x = 673,100.99 × 272,862.64
  4. Step 4: Simplify right side
    487,735.39x = 183,664,113,118.01
  5. Step 5: Solve for x
    x = 183,664,113,118.01/487,735.39
  6. Step 6: Final answer
    x = 376,565.07

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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.