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Finding the Fourth Proportional to 470,203.35, 648,874.91 and 255,344.96

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Solution

The fourth proportional to 470,203.35, 648,874.91 and 255,344.96 is: 352,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,203.35 : 648,874.91 = 255,344.96 : x
  2. Step 2: Convert to fraction form
    470,203.35/648,874.91 = 255,344.96/x
  3. Step 3: Cross multiply
    470,203.35x = 648,874.91 × 255,344.96
  4. Step 4: Simplify right side
    470,203.35x = 165,686,933,417.85
  5. Step 5: Solve for x
    x = 165,686,933,417.85/470,203.35
  6. Step 6: Final answer
    x = 352,372.93

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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.