Home / 528,003,083.40-792,004,625.10-419,163,966.60

Finding the Fourth Proportional to 528,003,083.40, 792,004,625.10 and 419,163,966.60

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Solution

The fourth proportional to 528,003,083.40, 792,004,625.10 and 419,163,966.60 is: 628,745,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,003,083.40 : 792,004,625.10 = 419,163,966.60 : x
  2. Step 2: Convert to fraction form
    528,003,083.40/792,004,625.10 = 419,163,966.60/x
  3. Step 3: Cross multiply
    528,003,083.40x = 792,004,625.10 × 419,163,966.60
  4. Step 4: Simplify right side
    528,003,083.40x = 331,979,800,222,461,952
  5. Step 5: Solve for x
    x = 331,979,800,222,461,952/528,003,083.40
  6. Step 6: Final answer
    x = 628,745,949.90

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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.