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Finding the Fourth Proportional to 483,223.88, 724,779.50 and 128,265.48

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Solution

The fourth proportional to 483,223.88, 724,779.50 and 128,265.48 is: 192,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,223.88 : 724,779.50 = 128,265.48 : x
  2. Step 2: Convert to fraction form
    483,223.88/724,779.50 = 128,265.48/x
  3. Step 3: Cross multiply
    483,223.88x = 724,779.50 × 128,265.48
  4. Step 4: Simplify right side
    483,223.88x = 92,964,190,461.66
  5. Step 5: Solve for x
    x = 92,964,190,461.66/483,223.88
  6. Step 6: Final answer
    x = 192,383.27

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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.