Home / 802,019,993.10-1,203,029,989.65-526,520,978.70

Finding the Fourth Proportional to 802,019,993.10, 1,203,029,989.65 and 526,520,978.70

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Solution

The fourth proportional to 802,019,993.10, 1,203,029,989.65 and 526,520,978.70 is: 789,781,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,019,993.10 : 1,203,029,989.65 = 526,520,978.70 : x
  2. Step 2: Convert to fraction form
    802,019,993.10/1,203,029,989.65 = 526,520,978.70/x
  3. Step 3: Cross multiply
    802,019,993.10x = 1,203,029,989.65 × 526,520,978.70
  4. Step 4: Simplify right side
    802,019,993.10x = 633,420,527,555,968,896
  5. Step 5: Solve for x
    x = 633,420,527,555,968,896/802,019,993.10
  6. Step 6: Final answer
    x = 789,781,468.05

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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.