Home / 483,222.12-724,776.87-128,263.72

Finding the Fourth Proportional to 483,222.12, 724,776.87 and 128,263.72

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Solution

The fourth proportional to 483,222.12, 724,776.87 and 128,263.72 is: 192,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,222.12 : 724,776.87 = 128,263.72 : x
  2. Step 2: Convert to fraction form
    483,222.12/724,776.87 = 128,263.72/x
  3. Step 3: Cross multiply
    483,222.12x = 724,776.87 × 128,263.72
  4. Step 4: Simplify right side
    483,222.12x = 92,962,577,516.16
  5. Step 5: Solve for x
    x = 92,962,577,516.16/483,222.12
  6. Step 6: Final answer
    x = 192,380.64

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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.