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Finding the Fourth Proportional to 470,372.64, 649,126.28 and 255,525

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Solution

The fourth proportional to 470,372.64, 649,126.28 and 255,525 is: 352,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,372.64 : 649,126.28 = 255,525 : x
  2. Step 2: Convert to fraction form
    470,372.64/649,126.28 = 255,525/x
  3. Step 3: Cross multiply
    470,372.64x = 649,126.28 × 255,525
  4. Step 4: Simplify right side
    470,372.64x = 165,867,992,697
  5. Step 5: Solve for x
    x = 165,867,992,697/470,372.64
  6. Step 6: Final answer
    x = 352,631.04

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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.