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Finding the Fourth Proportional to 553,311.96, 763,923.62 and 451,580.44

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Solution

The fourth proportional to 553,311.96, 763,923.62 and 451,580.44 is: 623,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,311.96 : 763,923.62 = 451,580.44 : x
  2. Step 2: Convert to fraction form
    553,311.96/763,923.62 = 451,580.44/x
  3. Step 3: Cross multiply
    553,311.96x = 763,923.62 × 451,580.44
  4. Step 4: Simplify right side
    553,311.96x = 344,972,964,445.99
  5. Step 5: Solve for x
    x = 344,972,964,445.99/553,311.96
  6. Step 6: Final answer
    x = 623,469.20

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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.