Home / 939,514,650.80-1,409,271,976.20-789,860,865.20

Finding the Fourth Proportional to 939,514,650.80, 1,409,271,976.20 and 789,860,865.20

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Solution

The fourth proportional to 939,514,650.80, 1,409,271,976.20 and 789,860,865.20 is: 1,184,791,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,514,650.80 : 1,409,271,976.20 = 789,860,865.20 : x
  2. Step 2: Convert to fraction form
    939,514,650.80/1,409,271,976.20 = 789,860,865.20/x
  3. Step 3: Cross multiply
    939,514,650.80x = 1,409,271,976.20 × 789,860,865.20
  4. Step 4: Simplify right side
    939,514,650.80x = 1,113,128,782,423,445,888
  5. Step 5: Solve for x
    x = 1,113,128,782,423,445,888/939,514,650.80
  6. Step 6: Final answer
    x = 1,184,791,297.80

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Double scale
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Similar ratio
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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.