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Finding the Fourth Proportional to 483,223.62, 724,779.12 and 128,265.22

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Solution

The fourth proportional to 483,223.62, 724,779.12 and 128,265.22 is: 192,382.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,223.62 : 724,779.12 = 128,265.22 : x
  2. Step 2: Convert to fraction form
    483,223.62/724,779.12 = 128,265.22/x
  3. Step 3: Cross multiply
    483,223.62x = 724,779.12 × 128,265.22
  4. Step 4: Simplify right side
    483,223.62x = 92,963,953,278.21
  5. Step 5: Solve for x
    x = 92,963,953,278.21/483,223.62
  6. Step 6: Final answer
    x = 192,382.88

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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.