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Finding the Fourth Proportional to 534,852.11, 800,469.81 and 520,459.01

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Solution

The fourth proportional to 534,852.11, 800,469.81 and 520,459.01 is: 778,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,852.11 : 800,469.81 = 520,459.01 : x
  2. Step 2: Convert to fraction form
    534,852.11/800,469.81 = 520,459.01/x
  3. Step 3: Cross multiply
    534,852.11x = 800,469.81 × 520,459.01
  4. Step 4: Simplify right side
    534,852.11x = 416,611,724,847.49
  5. Step 5: Solve for x
    x = 416,611,724,847.49/534,852.11
  6. Step 6: Final answer
    x = 778,928.82

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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.