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Finding the Fourth Proportional to 483,224.12, 724,779.87 and 128,265.72

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Solution

The fourth proportional to 483,224.12, 724,779.87 and 128,265.72 is: 192,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,224.12 : 724,779.87 = 128,265.72 : x
  2. Step 2: Convert to fraction form
    483,224.12/724,779.87 = 128,265.72/x
  3. Step 3: Cross multiply
    483,224.12x = 724,779.87 × 128,265.72
  4. Step 4: Simplify right side
    483,224.12x = 92,964,411,867.06
  5. Step 5: Solve for x
    x = 92,964,411,867.06/483,224.12
  6. Step 6: Final answer
    x = 192,383.64

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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.