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Finding the Fourth Proportional to 605,216,099.70, 907,824,149.55 and 398,591,838.90

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Solution

The fourth proportional to 605,216,099.70, 907,824,149.55 and 398,591,838.90 is: 597,887,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,216,099.70 : 907,824,149.55 = 398,591,838.90 : x
  2. Step 2: Convert to fraction form
    605,216,099.70/907,824,149.55 = 398,591,838.90/x
  3. Step 3: Cross multiply
    605,216,099.70x = 907,824,149.55 × 398,591,838.90
  4. Step 4: Simplify right side
    605,216,099.70x = 361,851,297,166,963,072
  5. Step 5: Solve for x
    x = 361,851,297,166,963,072/605,216,099.70
  6. Step 6: Final answer
    x = 597,887,758.35

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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.