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Finding the Fourth Proportional to 219,969.40, 329,370.90 and 173,313.40

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Solution

The fourth proportional to 219,969.40, 329,370.90 and 173,313.40 is: 259,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,969.40 : 329,370.90 = 173,313.40 : x
  2. Step 2: Convert to fraction form
    219,969.40/329,370.90 = 173,313.40/x
  3. Step 3: Cross multiply
    219,969.40x = 329,370.90 × 173,313.40
  4. Step 4: Simplify right side
    219,969.40x = 57,084,390,540.06
  5. Step 5: Solve for x
    x = 57,084,390,540.06/219,969.40
  6. Step 6: Final answer
    x = 259,510.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.