Home / 405,595,309,636.80-608,392,964,455.20-388,398,729,182.40

Finding the Fourth Proportional to 405,595,309,636.80, 608,392,964,455.20 and 388,398,729,182.40

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Solution

The fourth proportional to 405,595,309,636.80, 608,392,964,455.20 and 388,398,729,182.40 is: 582,598,093,773.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,595,309,636.80 : 608,392,964,455.20 = 388,398,729,182.40 : x
  2. Step 2: Convert to fraction form
    405,595,309,636.80/608,392,964,455.20 = 388,398,729,182.40/x
  3. Step 3: Cross multiply
    405,595,309,636.80x = 608,392,964,455.20 × 388,398,729,182.40
  4. Step 4: Simplify right side
    405,595,309,636.80x = 236,299,054,237,912,714,444,800
  5. Step 5: Solve for x
    x = 236,299,054,237,912,714,444,800/405,595,309,636.80
  6. Step 6: Final answer
    x = 582,598,093,773.60

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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.