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Finding the Fourth Proportional to 322,337.51, 483,505.73 and 85,680.19

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Solution

The fourth proportional to 322,337.51, 483,505.73 and 85,680.19 is: 128,520.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,337.51 : 483,505.73 = 85,680.19 : x
  2. Step 2: Convert to fraction form
    322,337.51/483,505.73 = 85,680.19/x
  3. Step 3: Cross multiply
    322,337.51x = 483,505.73 × 85,680.19
  4. Step 4: Simplify right side
    322,337.51x = 41,426,859,966.56
  5. Step 5: Solve for x
    x = 41,426,859,966.56/322,337.51
  6. Step 6: Final answer
    x = 128,520.14

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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.