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Finding the Fourth Proportional to 307,358.92, 424,153.48 and 171,394.48

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Solution

The fourth proportional to 307,358.92, 424,153.48 and 171,394.48 is: 236,523.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,358.92 : 424,153.48 = 171,394.48 : x
  2. Step 2: Convert to fraction form
    307,358.92/424,153.48 = 171,394.48/x
  3. Step 3: Cross multiply
    307,358.92x = 424,153.48 × 171,394.48
  4. Step 4: Simplify right side
    307,358.92x = 72,697,565,144.79
  5. Step 5: Solve for x
    x = 72,697,565,144.79/307,358.92
  6. Step 6: Final answer
    x = 236,523.36

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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.