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Finding the Fourth Proportional to 307,548.48, 424,416.96 and 173,412.48

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Solution

The fourth proportional to 307,548.48, 424,416.96 and 173,412.48 is: 239,309.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,548.48 : 424,416.96 = 173,412.48 : x
  2. Step 2: Convert to fraction form
    307,548.48/424,416.96 = 173,412.48/x
  3. Step 3: Cross multiply
    307,548.48x = 424,416.96 × 173,412.48
  4. Step 4: Simplify right side
    307,548.48x = 73,599,197,587.66
  5. Step 5: Solve for x
    x = 73,599,197,587.66/307,548.48
  6. Step 6: Final answer
    x = 239,309.25

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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.