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Finding the Fourth Proportional to 524,303,794.20, 786,959,576.10 and 265,810,891.80

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Solution

The fourth proportional to 524,303,794.20, 786,959,576.10 and 265,810,891.80 is: 398,971,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,303,794.20 : 786,959,576.10 = 265,810,891.80 : x
  2. Step 2: Convert to fraction form
    524,303,794.20/786,959,576.10 = 265,810,891.80/x
  3. Step 3: Cross multiply
    524,303,794.20x = 786,959,576.10 × 265,810,891.80
  4. Step 4: Simplify right side
    524,303,794.20x = 209,182,426,733,690,976
  5. Step 5: Solve for x
    x = 209,182,426,733,690,976/524,303,794.20
  6. Step 6: Final answer
    x = 398,971,796.60

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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.