Home / 528,003,081.40-792,004,622.10-419,163,964.60

Finding the Fourth Proportional to 528,003,081.40, 792,004,622.10 and 419,163,964.60

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Solution

The fourth proportional to 528,003,081.40, 792,004,622.10 and 419,163,964.60 is: 628,745,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,003,081.40 : 792,004,622.10 = 419,163,964.60 : x
  2. Step 2: Convert to fraction form
    528,003,081.40/792,004,622.10 = 419,163,964.60/x
  3. Step 3: Cross multiply
    528,003,081.40x = 792,004,622.10 × 419,163,964.60
  4. Step 4: Simplify right side
    528,003,081.40x = 331,979,797,380,960,832
  5. Step 5: Solve for x
    x = 331,979,797,380,960,832/528,003,081.40
  6. Step 6: Final answer
    x = 628,745,946.90

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1.5x scale

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.