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Finding the Fourth Proportional to 307,464.39, 424,301.51 and 171,494.84

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Solution

The fourth proportional to 307,464.39, 424,301.51 and 171,494.84 is: 236,663.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,464.39 : 424,301.51 = 171,494.84 : x
  2. Step 2: Convert to fraction form
    307,464.39/424,301.51 = 171,494.84/x
  3. Step 3: Cross multiply
    307,464.39x = 424,301.51 × 171,494.84
  4. Step 4: Simplify right side
    307,464.39x = 72,765,516,590.23
  5. Step 5: Solve for x
    x = 72,765,516,590.23/307,464.39
  6. Step 6: Final answer
    x = 236,663.23

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1.5x scale

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.