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Finding the Fourth Proportional to 470,535.72, 649,337.88 and 255,676.44

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Solution

The fourth proportional to 470,535.72, 649,337.88 and 255,676.44 is: 352,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,535.72 : 649,337.88 = 255,676.44 : x
  2. Step 2: Convert to fraction form
    470,535.72/649,337.88 = 255,676.44/x
  3. Step 3: Cross multiply
    470,535.72x = 649,337.88 × 255,676.44
  4. Step 4: Simplify right side
    470,535.72x = 166,020,397,515.55
  5. Step 5: Solve for x
    x = 166,020,397,515.55/470,535.72
  6. Step 6: Final answer
    x = 352,832.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.