Home / 405,595,308,688.80-608,392,963,033.20-388,398,728,234.40

Finding the Fourth Proportional to 405,595,308,688.80, 608,392,963,033.20 and 388,398,728,234.40

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Solution

The fourth proportional to 405,595,308,688.80, 608,392,963,033.20 and 388,398,728,234.40 is: 582,598,092,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,595,308,688.80 : 608,392,963,033.20 = 388,398,728,234.40 : x
  2. Step 2: Convert to fraction form
    405,595,308,688.80/608,392,963,033.20 = 388,398,728,234.40/x
  3. Step 3: Cross multiply
    405,595,308,688.80x = 608,392,963,033.20 × 388,398,728,234.40
  4. Step 4: Simplify right side
    405,595,308,688.80x = 236,299,053,108,853,221,621,760
  5. Step 5: Solve for x
    x = 236,299,053,108,853,221,621,760/405,595,308,688.80
  6. Step 6: Final answer
    x = 582,598,092,351.60

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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.