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Finding the Fourth Proportional to 648,255.80, 972,383.72 and 174,940.40

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Solution

The fourth proportional to 648,255.80, 972,383.72 and 174,940.40 is: 262,410.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,255.80 : 972,383.72 = 174,940.40 : x
  2. Step 2: Convert to fraction form
    648,255.80/972,383.72 = 174,940.40/x
  3. Step 3: Cross multiply
    648,255.80x = 972,383.72 × 174,940.40
  4. Step 4: Simplify right side
    648,255.80x = 170,109,196,930.29
  5. Step 5: Solve for x
    x = 170,109,196,930.29/648,255.80
  6. Step 6: Final answer
    x = 262,410.61

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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.