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Finding the Fourth Proportional to 323,365.49, 446,244.12 and 187,478.34

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Solution

The fourth proportional to 323,365.49, 446,244.12 and 187,478.34 is: 258,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,365.49 : 446,244.12 = 187,478.34 : x
  2. Step 2: Convert to fraction form
    323,365.49/446,244.12 = 187,478.34/x
  3. Step 3: Cross multiply
    323,365.49x = 446,244.12 × 187,478.34
  4. Step 4: Simplify right side
    323,365.49x = 83,661,106,852.36
  5. Step 5: Solve for x
    x = 83,661,106,852.36/323,365.49
  6. Step 6: Final answer
    x = 258,719.96

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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.