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Finding the Fourth Proportional to 322,256.16, 483,350.22 and 85,622.76

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Solution

The fourth proportional to 322,256.16, 483,350.22 and 85,622.76 is: 128,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,256.16 : 483,350.22 = 85,622.76 : x
  2. Step 2: Convert to fraction form
    322,256.16/483,350.22 = 85,622.76/x
  3. Step 3: Cross multiply
    322,256.16x = 483,350.22 × 85,622.76
  4. Step 4: Simplify right side
    322,256.16x = 41,385,779,883.01
  5. Step 5: Solve for x
    x = 41,385,779,883.01/322,256.16
  6. Step 6: Final answer
    x = 128,425.10

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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.